Perhaps you should try some spelling variations:
voice communication » voice communications, mobile communication, device communication
information costs » information contents, information centers, information content
technologien dis » technologien des, technologien als, technologien im
developing areas » developing asia, developing east, developing a
dis information » mis information, aids information, des informations
3 developing » 3 development
areas access » farmers access, cartels access, markets access
costs 3 » costs _, costs 4, costs a
3 voice » 3 voices, _ voice, a voice

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

• Adding a wildcard symbol may retrieve word variants: technologien dis information costs 3 voice communication costs 3 developing areas access.*.