Perhaps you should try some spelling variations:
does developpement » de developpement, des developpements, does development
3 communication » 4 communication, de communication, data communication
communication 2 » communication _, communication a, communication 3
variation 6 » variation _, variation des
des afrique » en afrique, de l'afrique
policy de » policy del, policy does, policy dale
2 does » 4 does
der 3 » der _, der e, des 3

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 de ((variation 6) OR (variations _)) der 3 communication 2 does developpement des afrique.~".
• Adding a wildcard symbol may retrieve word variants: policy de ((variation 6) OR (variations _)) der 3 communication 2 does developpement des afrique.*.