Perhaps you should try some spelling variations:
developpement en » developpement et, developpement des, developpement de
de communication » mobile communication, online communication
a developpement » au developpement, de developpement, le developpement
informal 4.2 » informal 8.4, informal 3.4.5, informal _
4.2 areas » 4.2 aireas, 3.4 areas, 2.1 areas
areas de » areas get, areas _, areas a
costs a » costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technology from informal 4.2 areas de communication costs a developpement en afrique.*.