Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
information centers » information contents, information officers
debt communications » debt communication, guest communications, data communications
technologien des » technologien fur, technologien und, technologies 2
des information » des informations, does information, dis information
4 developing » 3 developing
centers 8.3 » center 8.3, centers 3.3, centers 4.3
8.3 debt » 2.3 debt, 83 debt, 2.5 debt
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: technologien des information centers 8.3 debt communications costs 4 developing _ africa.*.