Perhaps you should try some spelling variations:
oral communication » personal communication
information case » information based, information can, information costs
development 2.3 » development 2.1, development 1
technologien 1 » technologies 1, technologien _, technologien 4
2.3 access » 5.3 access, 1.3 access, 2.4 access
case knew » case new, case known, cases new
knew oral » knew moral, new oral, new moral
costs 2 » costs 20, costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technologien 1 information case knew oral communication costs 2 development 2.3 access.*.