Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
information center » information centers, information centre, information content
technologien als » technologien des, technologien fur, technologien und
als information » als informations, aids information, laws information
developing av » developing a, developing ai, developing amp
4 developing » 3 developing
center 3.1 » center 2.1, center 4.1, century 3.1
av africa » v africa, iv africa, can africa
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technologien als information center 3.1 _ communications costs 4 developing av africa.*.