Perhaps you should try some spelling variations:
voice communication » voice communications, mobile communication, device communication
des developpements » deux developpements, de developpement, et developpements
developpements de » developpement de, developpement des, developpement du
typologie does » typologie des, typologie der, typologie cices
does variation » de variation, der variation, die variation
variation des » variation _, variation 6, variation series
delays voice » delays five
des delays » des deas, des degats, des deltas
de afrique » de l'afrique, en afrique, l afrique
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 does variation des delays voice communication a des developpements de afrique.*.