Perhaps you should try some spelling variations:
voice communication » voice communications, mobile communication, device communication
des developpement » des developpements, de developpement, le developpement
developpement il » developpement de, developpement et, developpement du
variation bei » variation des, variation der, variation _
typologie de » typologie des, typologie der, typologien der
de variation » der variation, die variation, does variation
does voice » does vote, holmes voice
il afrique » l afrique, en afrique
bei does » being does, behn does, bei der

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

• Adding a wildcard symbol may retrieve word variants: typologie de variation bei does voice communication _ des developpement il afrique.*.