Perhaps you should try some spelling variations:
oral communication » personal communication
technologien from » technologies from, technology from, technologien fur
from information » from informal, 1 information
developing asia » development asia, developing a
4 developing » 3 developing
contents co » contents how, contents lcm, contents 1
asia africa » cpia africa, china africa
co oral » who oral
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 from information contents co oral communication costs 4 developing asia africa.*.