Perhaps you should try some spelling variations:
voice communication » voice communications, mobile communication, device communication
technologien als » technologien des, technologien fur, technologien und
information 17.2 » information 1.2, information 15.2, information 11.2
als information » als informations, aids information, laws information
developing asia » development asia, developing a
asia access » basic access, basin access, asia across
3 voice » 3 voices, _ voice, a voice
17.2 3 » 17.2 _

You may be able to get more results by adjusting your search query.

• Adding a wildcard symbol may retrieve word variants: technologien als information 17.2 3 voice communication costs _ developing asia access.*.