Perhaps you should try some spelling variations:
communication services » telecommunications services
data communication » data communications
leur developpement » le developpement, deux developpements, de developpement
developpement en » developpement et, developpement des, developpement de
how variation » how valuation, does variation, four variation
services leur » services led, services le, services les
typology how » typology from, typology _, typology 4.1

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

• Adding a wildcard symbol may retrieve word variants: typology how variation _ test data communication services leur developpement en afrique.*.