Perhaps you should try some spelling variations:
oral communication » personal communication
du developpement » de developpement, le developpement, et developpement
developpement la » developpement de, developpement et, developpement du
des variation » does variation, de variation, der variation
variation 6 » variation _, variations _, variation des
la afrique » l afrique, la fabrique, en afrique
a oral » _ oral, 2 oral, 4 oral
a du » a d, a de, a u

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: (typologie OR typology) des variation 6 a oral communication a du developpement la afrique.~.
• Adding a wildcard symbol may retrieve word variants: (typologie or typology) des variation 6 a oral communication a du developpement la afrique.*.