Perhaps you should try some spelling variations:
face communication » voice communication, de communication, time communication
lehr developpement » leur developpement, le developpement, de developpement
developpement de » developpement des, developpement durable
communication 3 » communication _, communication a
de afrique » de l'afrique, en afrique, l afrique
2 face » _ face, a face, 2 fact
3 lehr » 3.2 lehr
3.2 2 » 3.2 _, 3.2 a, 3.2 k

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

• Adding a wildcard symbol may retrieve word variants: technologies _ information 3.2 2 face communication 3 lehr developpement de afrique.*.