Perhaps you should try some spelling variations:
oral communication » personal communication
information costs » information contents, information centers, information content
technologien und » technologie und, technologien des, technologien fur
und information » fund information, road information, award information
developing base » developing based, developing east, developing brain
a developing » a development
debat oral » debat moral, debate moral, debat social
base areas » basic areas, based areal, basin areas
costs a » costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technologien und information costs debat oral communication costs a developing base areas.*.