Perhaps you should try some spelling variations:
mann communication » human communication, oman communications, open communication
development main » development making, development moving, development mode
typologie der » typologie des, ideologie der
der variation » de variation, does variation, die variation
variation der » variation des, variation bei, variation _
main afrique » en afrique
den mann » den magen
der den » oder den, der de, der der
a gas » _ gas, 2 gas, 3 gas

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 den mann communication a gas development main afrique.*.