Perhaps you should try some spelling variations:
developing learning » development learning, developing teaching
voice communication » voice communications, mobile communication, device communication
technologien als » technologien des, technologien fur, technologien und
formation phase » formation chapter
als formation » als information, its formation, callus formation
a developing » a development
phase 2 » phase 1, phase _
2 voice » _ voice, a voice, 5 voice
costs a » costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technologien als formation phase 2 voice communication costs a developing learning process.*.