Perhaps you should try some spelling variations:
face communication » voice communication, de communication, time communication
a developpement » au developpement, de developpement, le developpement
des afrique » en afrique, de l'afrique
informal 2 » informal _, informal a, informal 4.2
areas face » areas case, areas act, areas facing
2 areas » 1 areas, 2 areal, 4 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 2 areas face communication costs a developpement des afrique.*.