Perhaps you should try some spelling variations:
information centers » information contents, information officers
communication cost » communication costs, communication costa, communications costs
de communication » mobile communication, online communication
technologien ad » technologien am, technologien und, technologien als
ad information » d information, nd information, od information
2.3 developing » 3.3 developing, 2.2 developing, 1.3 developing
centers homme » centers hold
developing a » developing _
homme de » femme de
cost 2.3 » costs 2.3, cost 2.4, cost 2.2
a africa » 1 africa, can africa, em africa

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

• Adding a wildcard symbol may retrieve word variants: technologien ad information centers homme de communication cost 2.3 developing a africa.*.