Perhaps you should try some spelling variations:
mobile communications » mobile communication
dam developpement » de developpement, du developpement, au developpement
developpement l » developpement il, developpement la, developpement de
how variation » how valuation, does variation, four variation
variation der » variation des, variation bei, variation _
typology how » typology from, typology _, typology 4.1
den mobile » does mobile, open mobile, non mobile
l afrique » en afrique
der den » oder den, der de, der der

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

• Adding a wildcard symbol may retrieve word variants: typology how variation der den mobile communications _ dam developpement l afrique.*.