Perhaps you should try some spelling variations:
voice communication » voice communications, mobile communication, device communication
developed contexts » developed content, development contexts, developing contexts
contexts assessed » contents assessing, context assessing, contexts affected
technologien ad » technologien am, technologien und, technologien als
information vii » information vi, information via, information view
ad information » d information, nd information, od information
3.2 developed » 6.3.2 developed, 13.4 developed, 2.0 developed
costs 3.2 » costs 4.2, cost 3.2, costs 3.5
a voice » _ voice
vii a » iii a, vii _, vii 1

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

• Adding a wildcard symbol may retrieve word variants: technologien ad information vii a voice communication costs 3.2 developed contexts assessed.*.