Perhaps you should try some spelling variations:
voice communication » voice communications, mobile communication, device communication
information anreiz » informations anreiz, b informationsanreize, information access
technologien als » technologien des, technologien fur, technologien und
developing areas » developing asia, developing east, developing a
als information » als informations, aids information, laws information
4 developing » 3 developing
areas area » areas arenas, areas aida, areas africa
anreiz en » anreiz und, anreiz zu
en voice » new voice, one voice, non voice
costs 4 » costs _, costs a, 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 als information anreiz en voice communication costs 4 developing areas area.*.