Perhaps you should try some spelling variations:
technologien des » technologien fur, technologien und, technologies 2
information case » information based, information can, information costs
de communication » mobile communication, online communication
des information » des informations, does information, dis information
3.2 developing » 3.3 developing, 2.2 developing, 3 developing
developing e » developing _, developing a, developing east
case debt » rate debt, case des
costs 3.2 » costs 4.2, cost 3.2, costs 3.5
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 case debt de communication costs 3.2 developing e areas.*.