Perhaps you should try some spelling variations:
oral communication » personal communication
typologie does » typologie des, typologie der, typologie cices
does variation » de variation, der variation, die variation
development en » developpement en, development menu, development eco
variation des » variation _, variation 6, variation series
werner oral » einer oral, gegner moral, werner frank
des werner » des warner, des werkes, dr werner

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

• Adding a wildcard symbol may retrieve word variants: typologie does variation des werner oral communication _ gas development en afrique.*.