Perhaps you should try some spelling variations:
personal communication » interpersonal communication
information costs » information contents, information centers, information content
technologien dis » technologien des, technologien als, technologien im
dis information » mis information, aids information, des informations
development 2.4 » development 2.1, development 2.3, development 2.2
2.4 access » 7.4 access, 2.3 access, 2.6 access
costs a » 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 dis information costs a personal communication costs a development 2.4 access.*.