Perhaps you should try some spelling variations:
device communication » services communication, voice communication, mobile communication
technologies better » technologies peter, technologies between, technologies chapter
better information » weather information, sector information, further information
information 13 » information 1.3, information 3, information 1
4 developing » 3 developing
und device » end device, und service, end devices
costs 4 » costs _, costs a, costs 4.2
13 und » 1933 und

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

• Adding a wildcard symbol may retrieve word variants: technologies better information 13 und device communication costs 4 developing _ areas.*.