Perhaps you should try some spelling variations:
verbal communication » nonverbal communication, virtual communication, oral communication
technologien als » technologien des, technologien fur, technologien und
information cost » information costs, information lost, information case
developing areas » developing asia, developing east, developing a
als information » als informations, aids information, laws information
4 developing » 3 developing
areas arenas » areas trends, seas areas
11 verbal » 1.1 verbal, 10 verbale, _ verbal
cost 11 » cost 12, cost 15, cost 11.3
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 cost 11 verbal communication costs 4 developing areas arenas.*.