Perhaps you should try some spelling variations:
asia environmentally » _ environmentally, sea environmental, aqaba environmental
development series » development services, development agencies, development africa
sustainable urban » sustainable use
urban development » human development
technical paper » technical experts, technical report
a technical » _ technical, 2 technical
world a » world _, world war

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

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