Perhaps you should try some spelling variations:
oral communication » personal communication
information users » information use, information centers, information und
communication 1 » communication _, communication a, communication 3
2 developpement » de developpement, le developpement, et developpement
des afrique » en afrique, de l'afrique
users use » uses use, users case
use oral » use rural, ashe oral

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

• Adding a wildcard symbol may retrieve word variants: technologies _ information users use oral communication 1 2 developpement des afrique.*.