Perhaps you should try some spelling variations:
sustainable resource » sustainable future
development services » development process, development africa
development agencies » development policies, government agencies
development series » development africa, development strategies, development strategy
technical experts » technical expertise
sustainable rural » sustainable urban, sustainable use
technical report » technical support

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