Perhaps you should try some spelling variations:
oral communication » personal communication
du developpement » de developpement, le developpement, et developpement
developpement en » developpement et, developpement des, developpement de
typologie does » typologie des, typologie der, typologie cices
does variation » de variation, der variation, die variation
variation over » variation der, variation notes, variation des
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 does variation over new oral communication _ du developpement en afrique.*.