Perhaps you should try some spelling variations:
does developpements » des developpements, de developpement, deux developpements
data communication » data communications
developpements en » developpement en, developpement et, developpements de
typologien does » typologie des, typologien der, typologie der
communication 5 » communication _, communication a, communication 3
does variation » de variation, der variation, die variation
variation 6 » variation _, variations _, variation des
costs data » cost data
6 costs » 3 costs, 4 costs, 6 cost
5 does » 2 does, 4 does

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

• Adding a wildcard symbol may retrieve word variants: typologien does variation 6 costs data communication 5 does developpements en afrique.*.