Perhaps you should try some spelling variations:
does developpement » de developpement, des developpements, does development
oral communication » personal communication
communication 12 » communication 1, communication 2, communication 10
developpement en » developpement et, developpement des, developpement de
variation oder » variation der, variation over, variation des
typologie bei » topologien bei, typologie des, typologie der
bei variation » de variation, der variation, based variation
oder den » oder der, wider den, uber den
den oral » den ort, new oral
12 does » 2 does, 10 does, 13 does

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

• Adding a wildcard symbol may retrieve word variants: typologie bei variation oder den oral communication 12 does developpement en afrique.*.