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 1 » communication _, communication a, communication 3
typologie de » typologie des, typologie der, typologien der
de variation » der variation, die variation, does variation
deas device » real device, less devices

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

• Adding a wildcard symbol may retrieve word variants: typologie de variation _ deas device communication 1 das developpement en afrique.*.