Perhaps you should try some spelling variations:
virtual communication » visual communication, verbal communication, cultural communication
communication cross » communication costs
trade developement » trade development, trade developments, trades development
developement de » developpement de, developpement des, developpements de
ideologie der » ideologie und, typologie der
der variation » de variation, does variation, die variation
variation 6.4 » variation 3.4, variation 6.3, variation 7.4
her virtual » over virtual, new virtual, your virtual
cross trade » crops trade, gross trade, across grade
de afrique » de l'afrique, en afrique, l afrique
6.4 her » 6.4 der, 6.4 other, 6.4 hyper

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

• Adding a wildcard symbol may retrieve word variants: ideologie der variation 6.4 her virtual communication cross trade developement de afrique.*.