Perhaps you should try some spelling variations:
verbal communication » nonverbal communication, virtual communication, oral communication
technologien about » technologien auf, technologien fur, technologien als
about information » account information, labor information, about inflation
information based » information case, information bank, transformation based
4 developing » 3 developing
developing a » developing _
ce verbal » des verbal, pre verbal, _ verbal
based ce » based c, based cd, based co
a africa » 1 africa, can africa, em africa
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 about information based ce verbal communication costs 4 developing a africa.*.