Perhaps you should try some spelling variations:
oral communication » personal communication
technologien als » technologien des, technologien fur, technologien und
information cost » information costs, information lost, information case
als information » als informations, aids information, laws information
2.1 development » 3.1 development, 2.3 development, 2.2 development
cost user » cost users, cost user's, costs used
costs 2.1 » costs 2.3, costs 4.1, costs 2.2
1 access » 10 access, 12 access, 14 access

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

• Adding a wildcard symbol may retrieve word variants: technologien als information cost user oral communication costs 2.1 development 1 access.*.