Perhaps you should try some spelling variations:
personal communication » interpersonal communication
developpement en » developpement et, developpement des, developpement de
e developpement » de developpement, le developpement, et developpement
typologie der » typologie des, ideologie der
der variation » de variation, does variation, die variation
variation bei » variation des, variation der, variation _
der personal » der personalen, der personen, der person

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

• Adding a wildcard symbol may retrieve word variants: typologie der variation bei der personal communication a e developpement en afrique.*.