Perhaps you should try some spelling variations:
personen communication » personal communication, personal communications, prone communication
leur developpement » le developpement, deux developpements, de developpement
developpement en » developpement et, developpement des, developpement de
typologie cices » typologie eines, typologie des
cices variation » price variation, die variation, does variation
der personen » der personalen, per person, und personen

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

• Adding a wildcard symbol may retrieve word variants: typologie cices variation _ der personen communication a leur developpement en afrique.*.