Perhaps you should try some spelling variations:
downward communication » towards communication, aware communication, hazard communication
information centers » information contents, information officers
communication 3 » communication _, communication a
technologies 4 » technologies _
model downward » model toward
4 information » 2 information, 1 information
centers model » centered model, center models, centers money
3 development » 2 development
development e » development 1, development eco, development 11
e afrique » en afrique, l afrique, de l'afrique

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 information centers model downward communication 3 3 development e afrique.*.