Perhaps you should try some spelling variations:
voice communication » voice communications, mobile communication, device communication
des developpements » deux developpements, de developpement, et developpements
developpements et » developpement et, developpement en, developpements de
typologie der » typologie des, ideologie der
der variation » de variation, does variation, die variation
variation des » variation _, variation 6, variation series
et afrique » en afrique, l afrique
new voice » new voices, one voice
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: typologie der variation des new voice communication a des developpements et afrique.*.