Perhaps you should try some spelling variations:
au developpement » du developpement, de developpement, le developpement
communication 1 » communication _, communication a, communication 3
developpement l » developpement il, developpement la, developpement de
technologies 2 » technologies _, technologies 4
information 1 » information 2, information 3, information 3.2
l afrique » en afrique
ein mass » einer mass, air mass
1 au » 1 auf, 1 aug, 1 a

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 1 ((ein mass) OR (ein mis)) communication 1 au developpement l afrique.~".
• Adding a wildcard symbol may retrieve word variants: technologies 2 information 1 ((ein mass) OR (ein mis)) communication 1 au developpement l afrique.*.