Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
de communications » de communication, do communications, mce communications
technologien des » technologien fur, technologien und, technologies 2
des information » des informations, does information, dis information
information 1.2 » information 1.5.2, information 2
3.3 developing » 4 developing, 2 developing, 1 developing
developing e » developing _, developing a, developing east
costs 3.3 » costs 2.3, costs 3.5, costs 4.3
1.2 debt » 4.2 debt, 10.8 debt, 1.2 der
debt de » debt do, debt debt, debt gdp
e 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: technologien des information 1.2 debt de communications costs 3.3 developing e areas.*.