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
developing base » developing based, developing east, developing brain
information b » information 2, information 1, information bank
4 developing » 3 developing
base areas » basic areas, based areal, basin areas
does oral » does formal, does oil
costs 4 » costs _, costs a, costs 4.2
b does » 2 does, 4 does, 1 does

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

• Adding a wildcard symbol may retrieve word variants: technologien des information b does oral communication costs 4 developing base areas.*.