Perhaps you should try some spelling variations:
voice communications » mobile communications, guinea communications, online communications
des developpement » des developpements, de developpement, le developpement
communications a » communications _, communications law, communications media
developpement en » developpement et, developpement des, developpement de
typologie der » typologie des, ideologie der
der variation » de variation, does variation, die variation
variation des » variation _, variation 6, variation series
dem voice » new voice
des dem » das dem, des der, des des
a des » a der, a das

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

• Adding a wildcard symbol may retrieve word variants: typologie der variation des dem voice communications a des developpement en afrique.*.