Perhaps you should try some spelling variations:
oral communication » personal communication
technologien des » technologien fur, technologien und, technologies 2
des information » des informations, does information, dis information
information und » informations und
developing east » development east, developing a, developing asia
4 developing » 3 developing
east areas » karst areas, east asezs
ne oral » new oral, one moral
costs 4 » costs _, costs a, costs 4.2
und ne » und neo, und new, und neue

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

• Adding a wildcard symbol may retrieve word variants: technologien des information und ne oral communication costs 4 developing east areas.*.