Perhaps you should try some spelling variations:
personal communication » interpersonal communication
developpement durable » developpement de
die developpement » de developpement, le developpement, du developpement
communication 13 » communication 1.3, communication 3, communication 1
variation over » variation der, variation notes, variation des
ideologie der » ideologie und, typologie der
der variation » de variation, does variation, die variation
de personal » der personal, des personal, de persona
13 die » 1.3 die

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

• Adding a wildcard symbol may retrieve word variants: ideologie der variation over de personal communication 13 die developpement durable afrique.*.