Perhaps you should try some spelling variations:
verbal communication » nonverbal communication, virtual communication, oral communication
information centers » information contents, information officers
technologien als » technologien des, technologien fur, technologien und
developing areas » developing asia, developing east, developing a
als information » als informations, aids information, laws information
4 developing » 3 developing
areas areas » areas arenas, seas areas, areas access
centers a » centers _, center a, enters a
a verbal » _ verbal, 3 verbal, a herbal
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 als information centers a verbal communication costs 4 developing areas areas.*.