Perhaps you should try some spelling variations:
communication services » telecommunications services
data communication » data communications
de developpement » sme development
developpement en » developpement et, developpement des, developpement de
3.3 variation » 3.3 validation, 6.4 variation, 6.3.5 variation
variation des » variation _, variation 6, variation series
typology 3.3 » topology 3.3, typology 3.4, typology 4.1
services de » services 3, services 1, services 2
costs data » cost data
des costs » gas costs, bus costs, d costs

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

• Adding a wildcard symbol may retrieve word variants: typology 3.3 variation des costs data communication services de developpement en afrique.*.