Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
information centers » information contents, information officers
set communications » sepl communications, et communication, et communicatione
technologien des » technologien fur, technologien und, technologies 2
des information » des informations, does information, dis information
4.4 developing » 5.4 developing, 6.4 developing, 1.4 developing
developing can » developing a, developing ai, developing av
can africa » urban africa
centers 3 » centers _, centers a, centers 3.3
costs 4.4 » costs 4.2
3 set » _ set, a set, 2 set

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 3 set communications costs 4.4 developing can africa.*.