Perhaps you should try some spelling variations:
device communication » services communication, voice communication, mobile communication
das developpement » des developpements, de developpement, du developpement
developpement en » developpement et, developpement des, developpement de
communication 3 » communication _, communication a
typologie der » typologie des, ideologie der
der variation » de variation, does variation, die variation
variation 6 » variation _, variations _, variation des
new device » new devices, new service, how device
6 new » _ new, a new, 3 new
3 das » 1 das, 2 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 6 new device communication 3 das developpement en afrique.*.