Perhaps you should try some spelling variations:
mutual communication » cultural communication, virtual communication, natural communication
lehr developpement » leur developpement, le developpement, de developpement
information needs » information networks
developpement de » developpement des, developpement durable
communication 3 » communication _, communication a
technologies 2 » technologies _, technologies 4
de africa » does africa, de america, use africa
needs 1 » needs 11, needs _, needs a
3 lehr » 3.2 lehr

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information needs 1 mutual communication 3 lehr developpement de africa.*.