Perhaps you should try some spelling variations:
communication services » telecommunications services
data communication » data communications
au developpement » du developpement, de developpement, le developpement
developpement en » developpement et, developpement des, developpement de
zur variation » der variation, _ variation, 2 variation
typology zur » typologie fur, typology _, typology 4.1
services au » services a, services ad, services ai
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 zur variation _ costs data communication services au developpement en afrique.*.