Perhaps you should try some spelling variations:
mobile communications » mobile communication
communications a » communications _, communications law, communications media
de developpement » sme development
typologie de » typologie des, typologie der, typologien der
de variation » der variation, die variation, does variation
variation vs » variation des, variation von, variation _
first mobile » first module, first move, first milk
des afrique » en afrique, de l'afrique
vs first » its first, his first, 2 first
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: typologie de variation vs first mobile communications a de developpement des afrique.*.