Perhaps you should try some spelling variations:
oral communication » personal communication
information costs » information contents, information centers, information content
4.10 development » 4.1 development, 4.0 development, 2.10 development
development 3.1 » development 1
technologies 2 » technologies _, technologies 4
costs 4.10 » costs 4.1, costs 4.11, costs 4.2
3.1 access » 1.1 access, 3.2 access, 3.6 access
costs 3 » costs _, costs a, costs 5
3 oral » _ oral, 2 oral, 4 oral

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information costs 3 oral communication costs 4.10 development 3.1 access.*.