Perhaps you should try some spelling variations:
oral communication » personal communication
die developpement » de developpement, le developpement, du developpement
der variation » de variation, does variation, die variation
typology der » typologie der, typologien der, typologie des
des afrique » en afrique, de l'afrique
does oral » does formal, does oil
media die » medien die, media age

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

• Adding a wildcard symbol may retrieve word variants: typology der variation _ does oral communication media die developpement des afrique.*.