Perhaps you should try some spelling variations:
data communication » data communications
communication 11 » communication 1.1, communication 101, communication 1
development does » development data, development 1, development 1.1
typologie der » typologie des, ideologie der
der variation » de variation, does variation, die variation
variation bei » variation des, variation der, variation _
does afrique » en afrique, does africa
den data » dan data, dn data, open data
bei den » bei der
11 gas » 10 gas, 2.11 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 bei den data communication 11 gas development does afrique.*.