Perhaps you should try some spelling variations:
de developpement » sme development
de communication » mobile communication, online communication
developpement de » developpement des, developpement durable
technologie 2 » technologies 2, technologie c, technologie 3
innovation 3 » innovation 1, innovation 4
costs de » costs _, costs 4, costs a
das de » das der, das dem, das den
3 das » 1 das, 2 das

You may be able to get more results by adjusting your search query.

• Adding a wildcard symbol may retrieve word variants: technologie 2 innovation 3 das de communication costs de developpement de l'afrique.*.