Perhaps you should try some spelling variations:
data communication » data communications
trade development » software development
communication 2 » communication _, communication a, communication 3
typologien die » typologien der, typologie des, typologie der
development de » development d, development ds, developpement de
die variation » de variation, does variation, der variation
variation did » variation des, variation der, variation im
do data » eo data, go data, geo data
2 trade » 1 trade, 4 trade
did do » aid do, did so

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

• Adding a wildcard symbol may retrieve word variants: typologien die variation did do data communication 2 trade development de l'afrique.*.