Perhaps you should try some spelling variations:
oral communication » personal communication
du developpement » de developpement, le developpement, et developpement
variation using » variations during, variation und, variation among
typologie der » typologie des, ideologie der
der variation » de variation, does variation, die variation
des afrique » en afrique, de l'afrique
using does » using deep, being does, using aes
does oral » does formal, does oil
media du » media die, media das, media der

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

• Adding a wildcard symbol may retrieve word variants: typologie der variation using does oral communication media du developpement des afrique.*.