Perhaps you should try some spelling variations:
regulation implementation » formulation implementation, innovation implementation, application implementation
implementation ethics » implementation ethical, implementation methods, implementation effects
decision agent » decision twenty, decision among, decision areas
decision about » decisions about, decision among

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

• Performing a fuzzy search may retrieve terms with similar spellings: regulation implementation ethics ((decision agent) or (decision about)) libre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: regulation implementation ethics ((decision agent) OR (decision about)) libre.
• Adding a wildcard symbol may retrieve word variants: regulation implementation ethics ((decision agent) or (decision about)) libre*.