Perhaps you should try some spelling variations:
personal communication » interpersonal communication
information costs » information contents, information centers, information content
technologien zur » technologien fur, technologien des, technologien und
zur information » fur information, your information, der information
other personal » other persons, better personal, wolter personal
4 developing » 3 developing
developing e » developing _, developing a, developing east
costs other » costs over
costs 4 » costs _, costs a, costs 4.2
e areas » 1 areas, 2 areas, 4 areas

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

• Adding a wildcard symbol may retrieve word variants: technologien zur information costs other personal communication costs 4 developing e areas.*.