Perhaps you should try some spelling variations:
information centers » information contents, information officers
fet communication » et communication, get communication, debt communication
technologien fur » technologien des, technologien und, technologies 2
fur information » zur information, fair information, your information
11.7 developing » 11.5 developing, 12.7 developing, 11.7.4 developing
centers 3.3 » centers 3.8, centers 4.3, century 3.3
costs 11.7 » costs 11.1, costs 11.4, costs 1.1.3
3.3 fet » 3.2 fet, 3.3 fea, 4.3 fet

You may be able to get more results by adjusting your search query.

• Adding a wildcard symbol may retrieve word variants: technologien fur information centers 3.3 fet communication costs 11.7 developing _ africa.*.