Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
information context » information content, information contents, information centers
der communications » peru communications, do communications, border communications
technologies 3.5 » technologies 3.1, technologies 3.2, technologies 3.4
3.5 information » 6.5 information, 2.1 information, 2.2 information
2 developing » 3 developing, 4 developing, 2 development
developing 1 » developing _, developing a, developing e
costs 2 » costs 20, costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technologies 3.5 information context _ der communications costs 2 developing 1 africa.*.