Perhaps you should try some spelling variations:
"global environmental performance evidence." » "global environment performance evidence.", "legal environment performance evidence."
"legal environmental governance system." » "legal environment governance system.", "legal environments governance system.", "local environmental governance system.", "legal environmental governance issues."

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("legal environmental governance system.") or ("global environmental performance evidence."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("legal environmental governance system.") OR ("global environmental performance evidence.")).
• Removing quotes may allow a broader search: (( legal environmental governance system. ) or ( global environmental performance evidence. )).
• Adding a wildcard symbol may retrieve word variants: (("legal environmental governance system.") or ("global environmental performance evidence."))*.