Perhaps you should try some spelling variations:
case communication » based communication, scale communication, face communication
developpement et » developpement des, developpement de, development east
a developpement » au developpement, de developpement, le developpement
informal 4.2 » informal 8.4, informal 3.4.5, informal _
et afrique » en afrique, l afrique
4.2 areas » 4.2 aireas, 3.4 areas, 2.1 areas
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 case communication costs a developpement et afrique.*.