Perhaps you should try some spelling variations:
voice communication » voice communications, mobile communication, device communication
information costs » information contents, information centers, information content
technologien als » technologien des, technologien fur, technologien und
als information » als informations, aids information, laws information
developing asia » development asia, developing a
3 developing » 3 development
asia access » basic access, basin access, asia across
costs 11.1 » costs 11.4, costs 11.7, costs 1.1.3
11.1 voice » 2.1 voice, 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 als information costs 11.1 voice communication costs 3 developing asia access.*.