Perhaps you should try some spelling variations:
oral communication » personal communication
de developpement » sme development
typologie die » typologie des, typologie der, theologie die
die variation » de variation, does variation, der variation
variation bei » variation des, variation der, variation _
mobile oral » mobile rural
des afrique » en afrique, de l'afrique
bei mobile » bei mobilen, being mobile, b mobile
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 die variation bei mobile oral communication a de developpement des afrique.*.