Perhaps you should try some spelling variations:
downward communication » towards communication, aware communication, hazard communication
information centers » information contents, information officers
communication 3.2 » communication 3.3, communication 3.4, communication 2
developpement en » developpement et, developpement des, developpement de
a developpement » au developpement, de developpement, le developpement
technologies a » technologies _, technologies 4, technologies 2
a information » 2 information, 1 information
3.2 a » 3.2 _, 2.2 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 3.2 a developpement en afrique.*.