Perhaps you should try some spelling variations:
device communication » services communication, voice communication, mobile communication
leur developpement » le developpement, deux developpements, de developpement
developpement de » developpement des, developpement durable
des variation » does variation, de variation, der variation
variation des » variation _, variation 6, variation series
de afrique » de l'afrique, en afrique, l afrique
3 device » 3 devices, _ device, a device
des 3 » des _
typologie » typologies, typology

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

• Adding a wildcard symbol may retrieve word variants: typologie des variation des 3 device communication a leur developpement de afrique.*.