Perhaps you should try some spelling variations:
oral communication » personal communication
information case » information based, information can, information costs
development 4.2 » development 4.1, development 1
technologien 2 » technologies 2, technologien _, technologien 1
4.2 access » 3.2 access, 7.2 access, 4 access
case n » case 1, case 2, case 3
n oral » _ oral, 2 oral, 4 oral

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

• Adding a wildcard symbol may retrieve word variants: technologien 2 information case n oral communication costs _ development 4.2 access.*.