Perhaps you should try some spelling variations:
vehicle communication » vehicular communication, device communication, voice communication
zu developpement » du developpement, au developpement, ou developpement
developpement l » developpement il, developpement la, developpement de
des variation » does variation, de variation, der variation
variation des » variation _, variation 6, variation series
gas vehicle » gas vehicles, das vehicle, a vehicle
l afrique » en afrique
des gas » des gens
a zu » a zur, a zum, 2 zu
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 gas vehicle communication a zu developpement l afrique.*.