Perhaps you should try some spelling variations:
does developpement » de developpement, des developpements, does development
developpement la » developpement de, developpement et, developpement du
communication 4 » communication _, communication a, communication 3
variation des » variation _, variation 6, variation series
la afrique » l afrique, la fabrique, en afrique
4 does » 2 does
dr ec » dr em, dr et

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: "typology _ variation des ((dr ec) OR (dr sc)) communication 4 does developpement la afrique.~".
• Adding a wildcard symbol may retrieve word variants: typology _ variation des ((dr ec) OR (dr sc)) communication 4 does developpement la afrique.*.