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
1 developing » 3 developing, 4 developing, 2 developing
from formal » from informal
context how » content how, context has, context he
how face » how race, how space, how false
costs 1 » costs _, costs 4, costs a

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 how face communication costs 1 developing _ africa.*.