Perhaps you should try some spelling variations:
mobile communications » mobile communication
communications costs » communication costs, communications _
de developpement » sme development
developpement de » developpement des, developpement durable
die mobile » does mobile, das mobile, day mobile
costs de » costs _, costs 4, costs a

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

• Adding a wildcard symbol may retrieve word variants: technology from informal _ die mobile communications costs de developpement de l'afrique.*.