Perhaps you should try some spelling variations:
information centers » information contents, information officers
communication cost » communication costs, communication costa, communications costs
technologien fur » technologien des, technologien und, technologies 2
de communication » mobile communication, online communication
fur information » zur information, fair information, your information
7.3 developing » 3.3 developing, 1.3 developing, 2.2 developing
developing eu » developing e, developing eq, developing egg
centers 3.3 » centers 3.8, centers 4.3, century 3.3
eu africa » em africa, 1 africa, 11 africa
cost 7.3 » cost 2.3, cost 7.4, cost 11.3
3.3 de » 3.3 die, 3.3 der, 3.3 dem

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 de communication cost 7.3 developing eu africa.*.