Perhaps you should try some spelling variations:
et developpements » et developpement, des developpements, en developpement
developpements en » developpement en, developpement et, developpements de
communication 3 » communication _, communication a
variation der » variation des, variation bei, variation _
6 variation » 6 variations, _ variation, 2 variation
typology 6 » typology _, typology 4.1
a oral » 2 oral, 4 oral, 1 oral
3 et » 13 et, 3 fet, 3 set

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 6 variation der ((a oral) OR (_ oral)) communication 3 et developpements en afrique.~.
• Adding a wildcard symbol may retrieve word variants: typology 6 variation der ((a oral) or (_ oral)) communication 3 et developpements en afrique.*.