Perhaps you should try some spelling variations:
technologies 2.1 » technologies _, technologies 4, technologies a
de communication » mobile communication, online communication
2.1 information » 3.1 information
information und » informations und
2.3 development » 2 development, 2015 development, 1 development
development 2 » development 1, development 2.1, development 2.3
costs 2.3 » costs 4.2, costs 4.4
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: technologies 2.1 information und ki de communication costs 2.3 development 2 real.*.