Perhaps you should try some spelling variations:
device communication » services communication, voice communication, mobile communication
de developpement » sme development
developpement en » developpement et, developpement des, developpement de
typologie der » typologie des, ideologie der
der variation » de variation, does variation, die variation
final device » final advice, final design, fi device
a de » a die, a der, a des

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

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