Perhaps you should try some spelling variations:
personal communication » interpersonal communication
developpement durable » developpement de
communication 13 » communication 1.3, communication 3, communication 1
du developpement » de developpement, le developpement, et developpement
variation over » variation der, variation notes, variation des
typologie die » typologie des, typologie der, theologie die
die variation » de variation, does variation, der variation
de personal » der personal, des personal, de persona
13 du » 11 du, 13 do, 13 zu

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

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