Perhaps you should try some spelling variations:
oral communication » personal communication
developpement de » developpement des, developpement durable
des variation » does variation, de variation, der variation
variation der » variation des, variation bei, variation _
de afrique » de l'afrique, en afrique, l afrique
de oral » de otras, new oral
a le » a les, a la, a e
a l » a la
typologie » typologies, typology

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 des variation der de oral communication ((a le) OR (a l)) developpement de afrique.~.
• Adding a wildcard symbol may retrieve word variants: typologie des variation der de oral communication ((a le) or (a l)) developpement de afrique.*.