Perhaps you should try some spelling variations:
deux developpements » des developpements, de developpement, du developpement
oral communication » personal communication
developpements en » developpement en, developpement et, developpements de
typologie does » typologie des, typologie der, typologie cices
does variation » de variation, der variation, die variation
variation over » variation der, variation notes, variation des
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 does variation over den oral communication _ deux developpements en afrique.*.