Perhaps you should try some spelling variations:
asia environmentally » _ environmentally
sustainable resource » sustainable future
aqaba environmental » global environmental, trade environmental, urban environmental
development series » development services, development agencies, development africa
technical experts » technical expertise
sea environmental » weak environmental, key environmental, state environmental
technical paper » technical report

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

• Performing a fuzzy search may retrieve terms with similar spellings: world bank ((technical paper) or (technical experts)). europe and central ((((asia environmentally) OR (sea environmental))) or (aqaba environmental)) and socially sustainable resource development series.~.
• If you are trying to use Boolean operators, they must be ALL CAPS: world bank ((technical paper) OR (technical experts)). europe AND central ((((asia environmentally) OR (sea environmental))) OR (aqaba environmental)) AND socially sustainable resource development series..
• The words AND, OR and NOT may confuse the search; try adding quotes: "world bank ((technical paper) or (technical experts)). europe and central ((((asia environmentally) OR (sea environmental))) or (aqaba environmental)) and socially sustainable resource development series.".
• Adding a wildcard symbol may retrieve word variants: world bank ((technical paper) or (technical experts)). europe and central ((((asia environmentally) OR (sea environmental))) or (aqaba environmental)) and socially sustainable resource development series.*.