Perhaps you should try some spelling variations:
verbal communication » nonverbal communication, virtual communication, oral communication
information durch » informationen durch, information search, information source
technologien ad » technologien am, technologien und, technologien als
ad information » d information, nd information, od information
4 developing » 3 developing
die verbal » die verbale, des verbal, pre verbal
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technologien ad information durch die verbal communication costs 4 developing _ areas.*.