Perhaps you should try some spelling variations:
information content » information contents, information centers, information centre
5.4 communication » de communication, data communication
content debate » content related, current debate, content data
3 development » 2 development
technology 1 » technology _
china africa » cpia africa, china asia
debate 5.4 » debate 1.4, debate 2.4, debate 15.3
costs 3 » costs _, costs 4, costs a

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

• Adding a wildcard symbol may retrieve word variants: technology 1 information content debate 5.4 communication costs 3 development china africa.*.