Perhaps you should try some spelling variations:
vater communication » water communication, master communication, matter communication
technologies 2.1 » technologies _, technologies 4, technologies a
information case » information based, information can, information costs
2.1 information » 3.1 information
4 developing » 3 developing
die vater » die tater, der vater
case die » case drive, phase die, case d
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technologies 2.1 information case die vater communication costs 4 developing _ areas.*.