Perhaps you should try some spelling variations:
innovation case » innovation based, innovation chapter, innovation center
d developpement » de developpement, du developpement, le developpement
developpement l » developpement il, developpement la, developpement de
technologies 4 » technologies _
4 innovation » 2 innovation, 3 innovation, der innovation
l afrique » en afrique
5.2 get » 3.2 get, 5.2 agent, 5.2 gibt
5.2 gec » 5.3 gec

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 innovation case ((5.2 get) OR (5.2 gec)) communication a d developpement l afrique.~".
• Adding a wildcard symbol may retrieve word variants: technologies 4 innovation case ((5.2 get) OR (5.2 gec)) communication a d developpement l afrique.*.