Perhaps you should try some spelling variations:
oral communication » personal communication
area development » asia development, career development, africa development
development en » developpement en, development menu, development eco
variation der » variation des, variation bei, variation _
typologie de » typologie des, typologie der, typologien der
de variation » der variation, die variation, does variation
de oral » de otras, new oral
a area » a areas, 1 area, 3 area

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

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