Perhaps you should try some spelling variations:
personal communication » interpersonal communication
information costs » information contents, information centers, information content
technologie und » technologies 2.1
und information » fund information, road information, award information
20 development » 2 development, 2015 development, 2007 development
development 2 » development 1, development 2.1, development 2.3
des personal » des personals, der personal, das personal
costs des » costs fees
costs 20 » costs 60, costs 2.3, costs 2.1
2 access » 3 access

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

• Adding a wildcard symbol may retrieve word variants: technologie und information costs des personal communication costs 20 development 2 access.*.