Perhaps you should try some spelling variations:
mobile communications » mobile communication
communications a » communications _, communications law, communications media
us developpement » un developpement, de developpement, le developpement
typologie der » typologie des, ideologie der
der variation » de variation, does variation, die variation
des afrique » en afrique, de l'afrique
a us » a u.s, _ us, a un

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

• Adding a wildcard symbol may retrieve word variants: typologie der variation _ non mobile communications a us developpement des afrique.*.