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
variation und » variation _, variablen und, variation 6
typologie de » typologie des, typologie der, typologien der
de variation » der variation, die variation, does variation
does oral » does formal, does oil
und does » guns does, und doch, aid does
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 de variation und does oral communication media en developpement en afrique.*.