Perhaps you should try some spelling variations:
6b informationsbereich » 6 informationsbereich, 6 informationsbrev, b informationsanreize
informationsbereich i » informationsbereich iv, 6 informationsbereich, informationsbegriff b
oral communication » personal communication
technologien fur » technologien des, technologien und, technologies 2
a developing » a development
developing 2 » developing _, developing a, developing e
costs a » costs _, costs 4
2 areas » 1 areas, 2 areal, 4 areas
i oral » ii oral, _ oral, 2 oral

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

• Adding a wildcard symbol may retrieve word variants: technologien fur 6b informationsbereich i oral communication costs a developing 2 areas.*.