Perhaps you should try some spelling variations:
mobile communications » mobile communication
leur developpement » le developpement, deux developpements, de developpement
communications a » communications _, communications law, communications media
developpement et » developpement des, developpement de, development east
variation long » variation among, variation von, variation onh
typologie der » typologie des, ideologie der
der variation » de variation, does variation, die variation
das mobile » does mobile, a mobile
et afrique » en afrique, l afrique
long das » long days, long des, long day's

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

• Adding a wildcard symbol may retrieve word variants: typologie der variation long das mobile communications a leur developpement et afrique.*.