Perhaps you should try some spelling variations:
device communication » services communication, voice communication, mobile communication
developing concepts » development concepts, development concept, developing countries
concepts selected » contexts selected, concepts related, context selected
technologien d » technologien ad, technologien _, technologien 1
d information » nd information, od information, und information
information b » information 2, information 1, information bank
4 developing » 3 developing
vf device » vs device, ocf device, _ device
costs 4 » costs _, costs a, costs 4.2
b vf » b f, b v

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

• Adding a wildcard symbol may retrieve word variants: technologien d information b vf device communication costs 4 developing concepts selected.*.