Perhaps you should try some spelling variations:
virtual communication » visual communication, verbal communication, cultural communication
information costs » information contents, information centers, information content
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 arenas » areas trends, seas areas
1 virtual » 11 virtual, 17 virtual, _ virtual
costs 1 » costs _, costs a, costs 5
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 costs 1 virtual communication costs 4 developing areas arenas.*.