Perhaps you should try some spelling variations:
10 communications » 10 communication, 14 communications, 2 communications
developpements de » developpement de, developpement des, developpement du
information data » information d820, information database, information databases
technologies 2 » technologies _, technologies 4
de afrique » de l'afrique, en afrique, l afrique
a net » a new, _ net, a neo
a et » a set, a bet, a jet

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 2 information data _ 10 communications ((a et) OR (a net)) developpements de afrique.~".
• Adding a wildcard symbol may retrieve word variants: technologies 2 information data _ 10 communications ((a et) OR (a net)) developpements de afrique.*.