Perhaps you should try some spelling variations:
information search » information sharing, information service, information sources
leur developpement » le developpement, deux developpements, de developpement
5.4 communication » de communication, data communication
developpement l » developpement il, developpement la, developpement de
search des » search best, search terms, search model
l afrique » en afrique
des 5.4 » dss 5.4, tides 5.4, cues 5.4

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

• Adding a wildcard symbol may retrieve word variants: technologies _ information search des 5.4 communication a leur developpement l afrique.*.