Perhaps you should try some spelling variations:
does developpements » des developpements, de developpement, deux developpements
oral communication » personal communication
developpements en » developpement en, developpement et, developpements de
communication 13 » communication 1.3, communication 3, communication 1
variations oder » variation der, variation over, variations des
its variations » cost variations, rate variations, _ variations
typologie its » typologie des, typologie et, typologie cices
oder den » oder der, wider den, uber den
den oral » den ort, new oral
13 does » 10 does

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

• Adding a wildcard symbol may retrieve word variants: typologie its variations oder den oral communication 13 does developpements en afrique.*.