Perhaps you should try some spelling variations:
oral communication » personal communication
ai developpement » au developpement, de developpement, le developpement
developpement l » developpement il, developpement la, developpement de
typologie der » typologie des, ideologie der
der variation » de variation, does variation, die variation
does oral » does formal, does oil
l afrique » en afrique
a ai » ai ai, _ ai, a a

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

• Adding a wildcard symbol may retrieve word variants: typologie der variation _ does oral communication a ai developpement l afrique.*.