Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
era communications » peru communications, a communications, era communicating
information 4.3.2 » information 4.3.3, information 2.3.2, information 3.2
technologies 2.1 » technologies _, technologies 4, technologies a
2.1 information » 3.1 information
4 development » 2 development, 4 developing
development 2 » development 1, development 2.1, development 2.3
4.3.2 why » 2.3.2 why, 3.3.2 why, 4.1.2 why
2 access » 3 access
why era » why erm
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technologies 2.1 information 4.3.2 why era communications costs 4 development 2 access.*.