Perhaps you should try some spelling variations:
active communication » reactive communication, proactive communication, actions communication
information costs » information contents, information centers, information content
au developpement » du developpement, de developpement, le developpement
developpement en » developpement et, developpement des, developpement de
4 active » _ active, 3 active, 2 active
costs au » costs a, costs amy, costs _
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technologies _ information costs 4 active communication costs au developpement en afrique.*.