Perhaps you should try some spelling variations:
personal communication » interpersonal communication
des developpement » des developpements, de developpement, le developpement
developpement en » developpement et, developpement des, developpement de
typologie der » typologie des, ideologie der
der variation » de variation, does variation, die variation
variation es » variation des, variation test, variations des
den personal » der personal, de personal, des personal

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

• Adding a wildcard symbol may retrieve word variants: typologie der variation es den personal communication _ des developpement en afrique.*.