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
1.4 developing » 12.4 developing, 1.3 developing, 14 developing
from formal » from informal
context how » content how, context has, context he
costs 1.4 » costs 11.4, costs 12.4, costs 4.4
how face » how race, how space, how false

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 1.4 developing _ africa.*.