Perhaps you should try some spelling variations:
device communication » services communication, voice communication, mobile communication
des developpement » des developpements, de developpement, le developpement
developpement en » developpement et, developpement des, developpement de
ideologie der » ideologie und, typologie der
der variation » de variation, does variation, die variation
variation des » variation _, variation 6, variation series
deas device » real device, less devices
des deas » des des, des degats, des delays
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: ideologie der variation des deas device communication a des developpement en afrique.*.