Perhaps you should try some spelling variations:
does developpement » de developpement, des developpements, does development
de communication » mobile communication, online communication
developpement en » developpement et, developpement des, developpement de
communication 2 » communication _, communication a, communication 3
variation 3 » variation 6, variation 5, variation a
2 does » 4 does

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: "policy does ((variation 3) OR (variation _)) der de communication 2 does developpement en afrique.~".
• Adding a wildcard symbol may retrieve word variants: policy does ((variation 3) OR (variation _)) der de communication 2 does developpement en afrique.*.