Perhaps you should try some spelling variations:
oral communication » personal communication
en developpement » et developpement, de developpement, le developpement
developpement en » developpement et, developpement des, developpement de
typologie der » typologie des, ideologie der
der variation » de variation, does variation, die variation
does oral » does formal, does oil
media en » media era, media _, media 1

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 media en developpement en afrique.*.