Perhaps you should try some spelling variations:
personen communication » personal communication, personal communications, prone communication
communication 3.1 » communication 3.3, communication 3.2, communication 3.4
die developpement » de developpement, le developpement, du developpement
developpement l » developpement il, developpement la, developpement de
variation bei » variation des, variation der, variation _
der personen » der personalen, per person, und personen
l afrique » en afrique

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

• Adding a wildcard symbol may retrieve word variants: typology _ variation bei der personen communication 3.1 die developpement l afrique.*.