Perhaps you should try some spelling variations:
personal communication » interpersonal communication
does developpement » de developpement, des developpements, does development
developpement en » developpement et, developpement des, developpement de
variation oder » variation der, variation over, variation des
typologie de » typologie des, typologie der, typologien der
de variation » der variation, die variation, does variation
de personal » der personal, des personal, de persona
oder de » oder die, oder der, oder den
a does » 2 does, 4 does, 1 does

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

• Adding a wildcard symbol may retrieve word variants: typologie de variation oder de personal communication a does developpement en afrique.*.