Perhaps you should try some spelling variations:
oral communication » personal communication
development manuel » developpement manuel, development model, development master
area development » asia development, career development, africa development
typologie der » typologie des, ideologie der
der variation » de variation, does variation, die variation
variation der » variation des, variation bei, variation _
vs oral » u.s oral
der vs » order vs

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

• Adding a wildcard symbol may retrieve word variants: typologie der variation der vs oral communication _ area development manuel afrique.*.