Perhaps you should try some spelling variations:
leur developpement » le developpement, deux developpements, de developpement
informationen uber » informationen und, information use, information users
4 informationen » _ informationen, b informationen, av informationen
developpement l » developpement il, developpement la, developpement de
technologies 4 » technologies _
l afrique » en afrique
dr a » dr h
dr e » d e, dr h

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "technologies 4 informationen uber ((dr a) OR (dr e)) communication a leur developpement l afrique.~".
• Adding a wildcard symbol may retrieve word variants: technologies 4 informationen uber ((dr a) OR (dr e)) communication a leur developpement l afrique.*.