Perhaps you should try some spelling variations:
information case » information based, information can, information costs
de communication » mobile communication, online communication
technologies 2 » technologies _, technologies 4
3.5 developing » 3.3 developing, 3.2 developing, 1.5 developing
developing a » developing _
case debt » rate debt, case des
costs 3.5 » costs 4.2, costs 4.4, costs 2.3
debt de » debt do, debt debt, debt gdp
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 case debt de communication costs 3.5 developing a areas.*.