Perhaps you should try some spelling variations:
informations context » information content, information contents, information control
oral communication » personal communication
technologien des » technologien fur, technologien und, technologies 2
des informations » aids information
developing city » developing cities, developing data, developing high
13 developing » 1.3 developing, 3 developing, 1 developing
city africa » china africa, cults africa
context 2 » context 3, context 1
costs 13 » costs 1, costs 3, costs 12.3
2 oral » _ oral, 4 oral

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

• Adding a wildcard symbol may retrieve word variants: technologien des informations context 2 oral communication costs 13 developing city africa.*.