Perhaps you should try some spelling variations:
communications cost » communications costs, communications cross, communication costs
information centers » information contents, information officers
a communications » a communication, data communications, a communicative
technologien ad » technologien am, technologien und, technologien als
ad information » d information, nd information, od information
centers 11.3.3 » centers 11.3.2, centers 11.5.1, century 11.3.3
7.3 developing » 3.3 developing, 1.3 developing, 2.2 developing
developing can » developing a, developing ai, developing av
can africa » urban africa
11.3.3 a » 11.3.3 _, 11.3.1 a, 11.5.3 a
cost 7.3 » cost 2.3, cost 7.4, cost 11.3

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 11.3.3 a communications cost 7.3 developing can africa.*.