Perhaps you should try some spelling variations:
voice communication » voice communications, mobile communication, device communication
le developpement » de developpement, sme development
communication 2 » communication _, communication a, communication 3
variation des » variation _, variation 6, variation series
typologie de » typologie des, typologie der, typologien der
de variation » der variation, die variation, does variation
delays voice » delays five
des afrique » en afrique, de l'afrique
des delays » des deas, des degats, des deltas
2 le » 2 les, 2 la, 2 de

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 delays voice communication 2 le developpement des afrique.*.