Perhaps you should try some spelling variations:
oral communication » personal communication
technologien des » technologien fur, technologien und, technologies 2
information used » information use, information users, information based
des information » des informations, does information, dis information
4 developing » 3 developing
used direct » use direct, uses direct, based direct
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technologien des information used direct oral communication costs 4 developing _ areas.*.