Perhaps you should try some spelling variations:
informationsgehalt des » informationsgehalt der, informationsgehalts der, informationsgehalt eines
6b informationsgehalt » 4 informationsgehalt, iv informationsgehalt, der informationsgehalt
oral communication » personal communication
technologien fur » technologien des, technologien und, technologies 2
developing a » developing _
des oral » des moral, des oil, des orts
a areas » 1 areas, 2 areas, 4 areas

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

• Adding a wildcard symbol may retrieve word variants: technologien fur 6b informationsgehalt des oral communication costs _ developing a areas.*.