Perhaps you should try some spelling variations:
data communication » data communications
communication 1.1 » communication 4.1, communication 7.1, communication 1.3
development 1.1 » development 2.1, development 2.3, development 2.2
typologie der » typologie des, ideologie der
der variation » de variation, does variation, die variation
variation der » variation des, variation bei, variation _
1.1 afrique » 2014 afrique
den data » dan data, dn data, open data
der den » oder den, der de, der der
1.1 gas » 1.1 goals, 1.1 case, 1.1 galy

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 data communication 1.1 gas development 1.1 afrique.*.