Perhaps you should try some spelling variations:
downward communication » towards communication, aware communication, hazard communication
information centers » information contents, information officers
communication 3.3 » communication _, communication a, communication 1
a developpement » au developpement, de developpement, le developpement
developpement l » developpement il, developpement la, developpement de
technologies a » technologies _, technologies 4, technologies 2
a information » 2 information, 1 information
l afrique » en afrique
3.3 a » 3.3 _, 2.3 a, 4.3 a

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

• Adding a wildcard symbol may retrieve word variants: technologies a information centers _ downward communication 3.3 a developpement l afrique.*.