Perhaps you should try some spelling variations:
clean development » human development, urban development
development banks » development bank
information need » information needs, information needed, information speed
technologies a » technologies _, technologies 4, technologies 2
a information » 2 information, 1 information
costs clean » costs clear
need ice » need fide, need one, need le

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

• Adding a wildcard symbol may retrieve word variants: technologies a information need ice _ communication costs clean development banks afrique.*.