Perhaps you should try some spelling variations:
communication services » telecommunications services
data communication » data communications
led developpement » le developpement, leur developpement, de developpement
developpement en » developpement et, developpement des, developpement de
how variation » how valuation, does variation, four variation
typology how » typology from, typology _, typology 4.1
services led » services 3.3, services 4, services 3
cost data » test data

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

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