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

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 environment performance evidence."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"legal environmental governance system.\") OR (\"global environment performance evidence.\"))".
• Removing quotes may allow a broader search: (( legal environmental governance system. ) OR ( global environment performance evidence. )).
• Adding a wildcard symbol may retrieve word variants: (("legal environmental governance system.") OR ("global environment performance evidence."))*.