Perhaps you should try some spelling variations:
du developpement » de developpement, le developpement, et developpement
innovation case » innovation based, innovation chapter, innovation center
communication 3 » communication _, communication a
developpement l » developpement il, developpement la, developpement de
technologies 2 » technologies _, technologies 4
l afrique » en afrique
5.2 et » 2.2 et
3 du » 3 due, 3 d, 3 zu

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 innovation case ((5.2 et) OR (5.2 ep)) communication 3 du developpement l afrique.~".
• Adding a wildcard symbol may retrieve word variants: technologies 2 innovation case ((5.2 et) OR (5.2 ep)) communication 3 du developpement l afrique.*.