Perhaps you should try some spelling variations:
china communications » china communication, china's communications, chile communications
communications costs » communication costs, communications _
information content » information contents, information centers, information centre
12.4 developing » 1.4 developing, 2.2 developing, 1.3 developing
technologien 2 » technologies 2, technologien _, technologien 1
developing em » developing e, developing eq, developing amp
costs 12.4 » costs 11.4, costs 12.3, costs 2.4
em africa » 1 africa

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

• Adding a wildcard symbol may retrieve word variants: technologien 2 information content _ china communications costs 12.4 developing em africa.*.