Perhaps you should try some spelling variations:
interfaces between » interface between, interval between, interests between
technologien four » technologien fur, technologien zur, technologies pour
de communication » mobile communication, online communication
four interfaces » motor interfaces, user interfaces, five interfaces
13 developing » 1.3 developing, 3 developing, 1 developing
levels de » levels ode, levels do, levels dr
costs 13 » costs 1, costs 3, costs 12.3

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

• Adding a wildcard symbol may retrieve word variants: technologien four interfaces between levels de communication costs 13 developing _ arenas.*.