Perhaps you should try some spelling variations:
personal communication » interpersonal communication
communication cost » communication costs, communication costa, communications costs
information costs » information contents, information centers, information content
3.2 development » 1 development, mena development
development 3.1 » development 1
technologies 4 » technologies _
4 information » 2 information, 1 information
neo personal » der personal, de personal, des personal
3.1 access » 1.1 access, 3.2 access, 3.6 access
costs neo » costs net
cost 3.2 » cost 2.4

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 information costs neo personal communication cost 3.2 development 3.1 access.*.