Perhaps you should try some spelling variations:
oral communication » personal communication
le developpement » de developpement, sme development
developpement en » developpement et, developpement des, developpement de
variation over » variation der, variation notes, variation des
typologie de » typologie des, typologie der, typologien der
de variation » der variation, die variation, does variation
over new » ever new, other new, offer new
new oral » new moral, knew moral, new rural

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

• Adding a wildcard symbol may retrieve word variants: typologie de variation over new oral communication _ le developpement en afrique.*.