Perhaps you should try some spelling variations:
oral communication » personal communication
leur developpement » le developpement, deux developpements, de developpement
developpement en » developpement et, developpement des, developpement de
communication 3 » communication _, communication a
des variation » does variation, de variation, der variation
variation de » variation des, variation der, variation due
new oral » new moral, knew moral, new rural
de new » die new, made new
3 leur » a leur, 3 lehr
typologie » typologies, typology

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

• Adding a wildcard symbol may retrieve word variants: typologie des variation de new oral communication 3 leur developpement en afrique.*.