Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
information context » information content, information contents, information centers
ea communications » a communications, 10 communications, 14 communications
technologies 2.1 » technologies _, technologies 4, technologies a
2.1 information » 3.1 information
2.3 developing » 3.3 developing, 2.2 developing, 1.3 developing
context 1.3 » context 3, context 2.1, context 3.1
costs 2.3 » costs 4.2, costs 4.4
1.3 ea » 1.3 el, 1.3 ca, 1.3 ed

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 context 1.3 ea communications costs 2.3 developing _ africa.*.