Perhaps you should try some spelling variations:
verbal communication » nonverbal communication, virtual communication, oral communication
technologien aids » technologien als, technologien ad, technologien des
aids information » chandos information, series information
information 3 » information 2
4 developing » 3 developing
developing a » developing _
der verbal » des verbal, der verbalen, der verband
a africa » 1 africa, can africa, em africa
costs 4 » costs _, costs a, costs 4.2
3 der » _ der, 2 der

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

• Adding a wildcard symbol may retrieve word variants: technologien aids information 3 der verbal communication costs 4 developing a africa.*.