Perhaps you should try some spelling variations:
development services » development agencies, development process, development africa
aqaba environmental » global environmental, trade environmental, urban environmental
sustainable rural » sustainable urban, sustainable use, sustainable resource
rural development » social development
central aqaba » central asia, central java
a technical » _ technical, 2 technical

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