Perhaps you should try some spelling variations:
personal communication » interpersonal communication
leur developpement » le developpement, deux developpements, de developpement
variation series » education series, action series, edition series
developpement en » developpement et, developpement des, developpement de
typologie von » typologie des, typologie der
von variation » 2 variation, 4 variation
dr personal » der personal, de personal, das personal
series dr » series d, series de, series _

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

• Adding a wildcard symbol may retrieve word variants: typologie von variation series dr personal communication a leur developpement en afrique.*.