Perhaps you should try some spelling variations:
oral communication » personal communication
development series » development services, development agencies, development strategies
area development » asia development, career development, africa development
des variation » does variation, de variation, der variation
variation der » variation des, variation bei, variation _
den oral » den ort, new oral
der den » oder den, der de, der der
a area » a areas, 1 area, 3 area
typologie » typologies, typology

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

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