Perhaps you should try some spelling variations:
voice communication » voice communications, mobile communication, device communication
technologien aids » technologien als, technologien ad, technologien des
information costs » information contents, information centers, information content
aids information » chandos information, series information
developing asia » development asia, developing a
3 developing » 3 development
asia access » basic access, basin access, asia across
costs 1 » costs _, costs 4, costs a
1 voice » 1 voiced, 1 voices, 11 voice
costs 3 » costs _, costs 4, costs a

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 1 voice communication costs 3 developing asia access.*.