Perhaps you should try some spelling variations:
technologien aids » technologien als, technologien ad, technologien des
aids information » chandos information, series information
de communication » mobile communication, online communication
developing urban » development urban, developing human, developing areas
12.4 developing » 1.4 developing, 2.2 developing, 1.3 developing
costs 12.4 » costs 11.4, costs 12.3, costs 2.4
urban area » urban areas
1 de » 1 die, 1 der, _ de
contents » context

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

• Adding a wildcard symbol may retrieve word variants: technologien aids information contents 1 de communication costs 12.4 developing urban area.*.