Perhaps you should try some spelling variations:
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
a mobile » _ mobile
need a » need _

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies a information need a mobile communication _ system development banks afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies a information need a mobile communication _ system development banks afrique.*.