Perhaps you should try some spelling variations:
device communication » services communication, voice communication, mobile communication
le developpement » de developpement, sme development
developpement en » developpement et, developpement des, developpement de
variation des » variation _, variation 6, variation series
typologie de » typologie des, typologie der, typologien der
de variation » der variation, die variation, does variation
des delays » des deas, des degats, des deltas

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

• Adding a wildcard symbol may retrieve word variants: typologie de variation des delays device communication _ le developpement en afrique.*.