Perhaps you should try some spelling variations:
oral communication » personal communication
technologien aids » technologien als, technologien ad, technologien des
information costs » information contents, information centers, information content
aids information » chandos information, series information
4 development » 2 development, 4 developing
1 access » 10 access, 12 access, 14 access
costs 4 » costs a, costs 4.2, costs 4.4

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

• Adding a wildcard symbol may retrieve word variants: technologien aids information costs _ oral communication costs 4 development 1 access.*.