Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
de communications » de communication, do communications, mce communications
information rate » information ratio, information related, information matter
technologies 2 » technologies _, technologies 4
4 developing » 3 developing
developing a » developing _
rate debt » private debt
debt de » debt do, debt debt, debt gdp
costs 4 » costs _, costs a, costs 4.2
a areas » 1 areas, 2 areas, 4 areas

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information rate debt de communications costs 4 developing a areas.*.