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
communication 2 » communication _, communication a, communication 3
variation oder » variation der, variation over, variation des
how variation » how valuation, does variation, four variation
typology how » typology from, typology _, typology 4.1
den personal » der personal, de personal, des personal
oder den » oder der, wider den, uber den
2 does » 4 does

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

• Adding a wildcard symbol may retrieve word variants: typology how variation oder den personal communication 2 does developpement en afrique.*.