Perhaps you should try some spelling variations:
innovation bases » innovation based, innovation cases, innovation brakes
du developpement » de developpement, le developpement, et developpement
developpement l » developpement il, developpement la, developpement de
technologies 3 » technologies _, technologies 4, technologies 2
3 innovation » 2 innovation
l afrique » en afrique
3.1 3 » 3.1 3d, 3.1 _, 3.1 k
3.1 a » 3.1 _, 2.1 a
a du » a d, a de, a u

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 3 innovation bases ((3.1 3) OR (3.1 a)) communication a du developpement l afrique.~".
• Adding a wildcard symbol may retrieve word variants: technologies 3 innovation bases ((3.1 3) OR (3.1 a)) communication a du developpement l afrique.*.