Perhaps you should try some spelling variations:
voice communication » voice communications, mobile communication, device communication
le developpement » de developpement, sme development
developpement l » developpement il, developpement la, developpement de
variation des » variation _, variation 6, variation series
typologie de » typologie des, typologie der, typologien der
de variation » der variation, die variation, does variation
l afrique » en afrique
des deas » des des, des degats, des delays
a le » a les, a la, a l

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

• Adding a wildcard symbol may retrieve word variants: typologie de variation des deas voice communication a le developpement l afrique.*.