Perhaps you should try some spelling variations:
information source » information sources, information resource, information resources
oral communication » personal communication
technologien des » technologien fur, technologien und, technologies 2
des information » des informations, does information, dis information
a developing » a development
developing 1 » developing _, developing a, developing e
source die » source de, source des, source du
die oral » die moral, die orte
costs a » costs _, costs 4
1 areas » 1 area, 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 des information source die oral communication costs a developing 1 areas.*.