Perhaps you should try some spelling variations:
oral communication » personal communication
developpement en » developpement et, developpement des, developpement de
communication 3 » communication _, communication a
d developpement » de developpement, du developpement, le developpement
variation over » variation der, variation notes, variation des
typologie de » typologie des, typologie der, typologien der
de variation » der variation, die variation, does variation
over den » oder den, over de, uber den
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 de variation over den oral communication 3 d developpement en afrique.*.