Perhaps you should try some spelling variations:
communication services » telecommunications services
data communication » data communications
des developpement » des developpements, de developpement, le developpement
variation series » education series, action series, edition series
developpement en » developpement et, developpement des, developpement de
series costs » series cross, series post, service costs
services des » services does, services de, service des
costs data » cost data

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

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