Perhaps you should try some spelling variations:
information context » information content, information contents, information centers
open communication » human communication, 3 communication, 4 communication
technologien des » technologien fur, technologien und, technologies 2
des information » des informations, does information, dis information
7.3 developing » 3.3 developing, 1.3 developing, 2.2 developing
context 2.3 » context 2.1, context 1.3, context 3
costs 7.3 » costs 2.3, costs 4.3, costs 5.3
2.3 open » 2.2 open, 2.5 open, 2.4 open

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

• Adding a wildcard symbol may retrieve word variants: technologien des information context 2.3 open communication costs 7.3 developing _ africa.*.