Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
information center » information centers, information centre, information content
technologien fair » technologien fur, technologies fail, technologien als
fair information » fairs information, fur information, labor information
3 communication » 4 communication, de communication, data communication
center workers » sector workers, career workers, center workforce
3.2 developing » 3.3 developing, 2.2 developing, 3 developing
developing ii » developing ai, developing ict, developing cil
workers 3 » workers 13, workers _, workers a
ii africa » ii afrika, ii america, 1 africa
cost 3.2 » cost 2.4

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

• Adding a wildcard symbol may retrieve word variants: technologien fair information center workers 3 communication cost 3.2 developing ii africa.*.