Perhaps you should try some spelling variations:
voice communications » mobile communications, guinea communications, online communications
communications a » communications _, communications law, communications media
de developpement » sme development
developpement en » developpement et, developpement des, developpement de
typologie de » typologie des, typologie der, typologien der
de variation » der variation, die variation, does variation
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: typologie de variation _ deas voice communications a de developpement en afrique.*.