Perhaps you should try some spelling variations:
information century » information centers, information centre, information center
technologien als » technologien des, technologien fur, technologien und
als information » als informations, aids information, laws information
4 developing » 3 developing
century how » century book
how mobile » non mobile, go mobile, new mobile
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 century how mobile communication costs 4 developing _ africa.*.