Perhaps you should try some spelling variations:
oral communication » personal communication
does developpement » de developpement, des developpements, does development
developpement l » developpement il, developpement la, developpement de
variation uber » variationen uber, variation bei, variation der
typologie die » typologie des, typologie der, theologie die
die variation » de variation, does variation, der variation
l afrique » en afrique
uber den » uber die
den oral » den ort, new oral

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

• Adding a wildcard symbol may retrieve word variants: typologie die variation uber den oral communication _ does developpement l afrique.*.