Perhaps you should try some spelling variations:
oral communication » personal communication
information costs » information contents, information centers, information content
technologien und » technologie und, technologien des, technologien fur
und information » fund information, road information, award information
2.5 development » 2.3 development, 2.1 development, 2.2 development
development 2.1 » development 1
2.1 access » 1.1 access, 3.1 access, 5.1 access
costs 2.5 » costs 2.3, costs 3.5, cost 2.5
costs ch » costs cash, costs chap, costs _
ch oral » who oral, why oral

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

• Adding a wildcard symbol may retrieve word variants: technologien und information costs ch oral communication costs 2.5 development 2.1 access.*.