Perhaps you should try some spelling variations:
oral communication » personal communication
africa development » african development, american development, physical development
development en » developpement en, development menu, development eco
typologie der » typologie des, ideologie der
der variation » de variation, does variation, die variation
variation das » variation des, variation data, variations des
hier oral » einer oral
das hier » das tier, das herz, das hirn

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

• Adding a wildcard symbol may retrieve word variants: typologie der variation das hier oral communication _ africa development en afrique.*.