Perhaps you should try some spelling variations:
case communication » based communication, scale communication, face communication
au developpement » du developpement, de developpement, le developpement
developpement de » developpement des, developpement durable
informal 2 » informal _, informal a, informal 4.2
de afrique » de l'afrique, en afrique, l afrique
costs au » costs a, costs amy, costs _
2 areas » 1 areas, 2 areal, 4 areas

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 case communication costs au developpement de afrique.*.