Perhaps you should try some spelling variations:
does development » dams development, ides development, smes development
communication 3 » communication _, communication a
development de » development d, development ds, developpement de
variation des » variation _, variation 6, variation series
3 does » 13 does, 2 does, 4 does
dr ec » dr em, dr sc
dr et » dr em, fr et, ur et

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

• If you are trying to use Boolean operators, they must be ALL CAPS: typology _ variation des ((dr ec) OR (dr et)) communication 3 does development de l'afrique.~.
• Adding a wildcard symbol may retrieve word variants: typology _ variation des ((dr ec) or (dr et)) communication 3 does development de l'afrique.*.