Perhaps you should try some spelling variations:
information century » information centers, information centre, information center
old communication » world communication, good communication, oecd communications
technologies 4 » technologies _
3.3 developing » 4 developing, 2 developing, 1 developing
4 information » 2 information, 1 information
developing a » developing _
costs 3.3 » costs 2.3, costs 3.5, costs 4.3
a africa » 1 africa, can africa, em africa

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 information century new old communication costs 3.3 developing a africa.*.