Perhaps you should try some spelling variations:
personal communication » interpersonal communication
information costs » information contents, information centers, information content
4 development » 2 development, 4 developing
neo personal » der personal, de personal, des personal
costs neo » costs net
costs 4 » costs _, costs a, costs 4.2
1 areal » 1 real, _ areal, 1 area

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

• Adding a wildcard symbol may retrieve word variants: technologies _ information costs neo personal communication costs 4 development 1 areal.*.