Perhaps you should try some spelling variations:
oral communication » personal communication
de developpement » sme development
developpement en » developpement et, developpement des, developpement de
variation being » variation bei, variation using, variation among
typologie de » typologie des, typologie der, typologien der
de variation » der variation, die variation, does variation
being mobile » using mobile, wing mobile, banking mobile
mobile oral » mobile rural
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 being mobile oral communication a de developpement en afrique.*.