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

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

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