Perhaps you should try some spelling variations:
rural development » social development
information need » information needs, information needed, information speed
la communication » data communication, data communications
development case » development china
systems rural » system rural, systems natural, systems rule
need one » need more, need only
one la » one last

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

• Adding a wildcard symbol may retrieve word variants: technologies _ information need one la communication systems rural development case afrique.*.