Perhaps you should try some spelling variations:
voice communication » voice communications, mobile communication, device communication
information banken » information bank, information banks, information based
technologien des » technologien fur, technologien und, technologies 2
des information » des informations, does information, dis information
developing 1.3 » developing _, developing a, developing e
banken den » banken wenn, banken bei, banken die
den voice » new voice, non voice
1.3 area » 1.1 area, 6.3 area, 18.3 areas

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

• Adding a wildcard symbol may retrieve word variants: technologien des information banken den voice communication costs _ developing 1.3 area.*.