Perhaps you should try some spelling variations:
face communication » voice communication, de communication, time communication
technologien from » technologies from, technology from, technologien fur
formal context » formal contexts, formal concept, formats content
14 developing » 4 developing, 1 developing, 10 developing
context when » context what, context why, context we
from formal » from informal
when face » when faced, en face, when base
costs 14 » costs 4, costs 1, costs 11.4

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

• Adding a wildcard symbol may retrieve word variants: technologien from formal context when face communication costs 14 developing _ africa.*.