Perhaps you should try some spelling variations:
device communication » services communication, voice communication, mobile communication
de developpement » sme development
developpement en » developpement et, developpement des, developpement de
typologien de » typologien der, typologie des, typologie der
de variation » der variation, die variation, does variation
deas device » real device, less devices
a de » a die, a der, a des

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

• Adding a wildcard symbol may retrieve word variants: typologien de variation _ deas device communication a de developpement en afrique.*.