Perhaps you should try some spelling variations:
"world bank technical paper. europe and central trade environmental and socially sustainable social development series." » "world bank technical paper. europe and central trade environmental and socially sustainable society development series.", "world bank technical paper. europe and central trade environmental and socially sustainable solid development series.", "world bank technical paper. europe and central trade environmental and socially sustainability social development series.", "world bank technical paper. europe and central trade environmental and socially sustainable social development services.", "world bank technical paper. europe and central trade environmental and socially sustainable social development agencies.", "world bank technical paper. europe and central trade environmental and socially sustainable social development africa.", "world bank technical report. europe and central trade environmental and socially sustainable social development series.", "world a technical paper. europe and central trade environmental and socially sustainable social development series.", "world bank technical paper. europe and general trade environmental and socially sustainable social development series.", "world bank technical paper. europe and central rate environmental and socially sustainable social development series.", "world bank technical paper. europe and neutral trade environmental and socially sustainable social development series."
"world bank technical paper. europe and central trade environmental and socially sustainable rural development series." » "world bank technical paper. europe and central trade environmental and socially sustainable rural development services.", "world bank technical paper. europe and central trade environmental and socially sustainable rural development agencies.", "world bank technical paper. europe and central trade environmental and socially sustainable rural development africa.", "world bank technical paper. europe and central trade environmental and socially sustainable use development series.", "world bank technical paper. europe and central trade environmental and socially sustainable resource development series.", "world bank technical report. europe and central trade environmental and socially sustainable rural development series.", "world a technical paper. europe and central trade environmental and socially sustainable rural development series.", "world bank technical paper. europe and general trade environmental and socially sustainable rural development series.", "world bank technical paper. europe and central rate environmental and socially sustainable rural development series.", "world bank technical paper. europe and neutral trade environmental and socially sustainable rural development series."
"world bank technical experts. europe and central asia environmental and socially sustainable urban development series." » "world bank technical experts. europe and central asia environmental and socially sustainable urban development services.", "world bank technical experts. europe and central asia environmental and socially sustainable urban development agencies.", "world bank technical experts. europe and central asia environmental and socially sustainable urban development africa.", "world bank technical experts. europe and central sea environmental and socially sustainable urban development series.", "world bank technical experts. europe and central aqaba environmental and socially sustainable urban development series.", "world bank technical experts. europe and central india environmental and socially sustainable urban development series.", "world bank technical expertise. europe and central asia environmental and socially sustainable urban development series.", "world bank technical experts. europe and central asia environmental and socially sustainable use development series.", "world bank technical experts. europe and central asia environmental and socially sustainable human development series.", "world a technical experts. europe and central asia environmental and socially sustainable urban development series."

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("world bank technical paper. europe and central trade environmental and socially sustainable rural development series.") OR ("world bank technical paper. europe and central trade environmental and socially sustainable social development series."))) OR ("world bank technical experts. europe and central asia environmental and socially sustainable urban development series."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"world bank technical paper. europe and central trade environmental and socially sustainable rural development series.\") OR (\"world bank technical paper. europe and central trade environmental and socially sustainable social development series.\"))) or (\"world bank technical experts. europe and central asia environmental and socially sustainable urban development series.\"))~".
• Removing quotes may allow a broader search: (((( world bank technical paper. europe and central trade environmental and socially sustainable rural development series. ) OR ( world bank technical paper. europe and central trade environmental and socially sustainable social development series. ))) or ( world bank technical experts. europe and central asia environmental and socially sustainable urban development series. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("world bank technical paper. europe and central trade environmental and socially sustainable rural development series.") OR ("world bank technical paper. europe and central trade environmental and socially sustainable social development series."))) or ("world bank technical experts. europe and central asia environmental and socially sustainable urban development series."))*.