Perhaps you should try some spelling variations:
mobile communications » mobile communication
communications a » communications _, communications law, communications media
de developpement » sme development
developpement en » developpement et, developpement des, developpement de
4.1 variation » 1.1 variation, 2.1 variation, 4.3 variation
variation des » variation _, variation 6, variation series
typology 4.1 » typology 2.2.1, typology _, ecology 4.1
does mobile » das mobile
des does » des doses, der does, des dorfes
a de » a die, a der, a des

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

• Adding a wildcard symbol may retrieve word variants: typology 4.1 variation des does mobile communications a de developpement en afrique.*.