Perhaps you should try some spelling variations:
face communication » voice communication, de communication, time communication
technologien from » technologies from, technology from, technologien fur
formal contexts » formal context, formal contracts, local contexts
10 developing » 1 developing, 3 developing, 4 developing
from formal » from informal
contexts he » context he, contexts new, contexts _
costs 10 » costs 1, costs 20, costs 60
he face » we face, head face, when face

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

• Adding a wildcard symbol may retrieve word variants: technologien from formal contexts he face communication costs 10 developing _ africa.*.