Perhaps you should try some spelling variations:
device communication » services communication, voice communication, mobile communication
der developpements » des developpements, deux developpements, de developpement
developpements en » developpement en, developpement et, developpements de
communication 2 » communication _, communication a, communication 3
ideologie der » ideologie und, typologie der
der variation » de variation, does variation, die variation
der device » der service, user device, user devices

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

• Adding a wildcard symbol may retrieve word variants: ideologie der variation _ der device communication 2 der developpements en afrique.*.