Perhaps you should try some spelling variations:
face communication » voice communication, de communication, time communication
technologien aids » technologien als, technologien ad, technologien des
information 1.5.2 » information 1.2, information 2
aids information » chandos information, series information
developing firms » developing forms, developing fields, developing forest
4 developing » 3 developing
1.5.2 a » 11.5.2 a, 12.5.2 a, 13.5.2 a
costs 4 » costs _, costs a, costs 4.2
a face » a fact

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

• Adding a wildcard symbol may retrieve word variants: technologien aids information 1.5.2 a face communication costs 4 developing firms access.*.