Perhaps you should try some spelling variations:
software containing » software obtaining, software container, software containers
software trainer » software training, software tamper, software container
ausbaustufen » ausbauten

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((software trainer) OR (software containing)) ausbaustufen.
• Adding a wildcard symbol may retrieve word variants: ((software trainer) or (software containing)) ausbaustufen*.