Perhaps you should try some spelling variations:
verbal communication » nonverbal communication, virtual communication, oral communication
information costs » information contents, information centers, information content
technologien od » technologien ad, technologien und, technologien _
developing base » developing based, developing east, developing brain
od information » d information, nd information, road information
base areas » basic areas, based areal, basin areas
4 verbal » _ verbal, 3 verbal, a verbal
costs 4 » costs a, costs 4.2, costs 4.4

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

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