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
information und » informations und
development 2.1 » development 1
2.1 areas » 2.10 areas, 2.1 area, 2.4 areas
und ki » und kein
ki de » ki die, i de, ii de

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

• Adding a wildcard symbol may retrieve word variants: technologien aids information und ki de communication costs _ development 2.1 areas.*.