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
information case » information based, information can, information costs
technologie im » technologien im, technologien am, technologie c
im information » crm information, stm information, 2 information
4.1 developed » 4.5 developed, 5.1 developed, 6.1 developed
costs 4.1 » costs 4.2, costs 4.4, costs 4.3
i voice » _ voice, a voice, 5 voice
case i » case 1, case 2, case 3

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

• Adding a wildcard symbol may retrieve word variants: technologie im information case i voice communication costs 4.1 developed contexts assessed.*.