Perhaps you should try some spelling variations:
mobile communications » mobile communication
communications cross » communication cross, communications costs, communication across
et developpement » de developpement, le developpement, test development
developpement l » developpement il, developpement la, developpement de
informal 3.2.5 » informal 3.4.5, informal 4.2, informativ 9.2.5
die mobile » does mobile, das mobile, day mobile
3.2.5 die » 3.2.1 die, 3.2.2 die, 3.2.3 die
l afrique » en afrique
cross et » cross sea, cross _, cross 1

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

• Adding a wildcard symbol may retrieve word variants: technology from informal 3.2.5 die mobile communications cross et developpement l afrique.*.