Perhaps you should try some spelling variations:
virtual communication » visual communication, verbal communication, cultural communication
technologien aids » technologien als, technologien ad, technologien des
information costs » information contents, information centers, information content
aids information » chandos information, series information
developing seas » developing areas, developing east, developing self
4.4 developing » 5.4 developing, 6.4 developing, 1.4 developing
costs 4.4 » 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 aids information costs _ virtual communication costs 4.4 developing seas areas.*.