Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
developing china » developing china's, development china, developing caring
information 2 » information 3
doubles data » double dot, tables data
4 developing » 3 developing
china africa » cpia africa, china asia
2 doubles » 2 double, _ double, a double
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology _ information 2 doubles data communications costs 4 developing china africa.*.