Perhaps you should try some spelling variations:
communication services » telecommunications services
data communication » data communications
des developpement » des developpements, de developpement, le developpement
developpement de » developpement des, developpement durable
variation due » variation de, variation des, variation der
services des » services does, services de, service des
costs data » cost data
de afrique » de l'afrique, en afrique, l afrique
due costs » true costs, drug costs, cut costs

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

• Adding a wildcard symbol may retrieve word variants: typology _ variation due costs data communication services des developpement de afrique.*.