Perhaps you should try some spelling variations:
"legal environmental governance system." » "legal environmental performance system.", "legal environments governance system.", "local environmental governance system.", "level environmental governance system.", "global environmental governance system."
"legal environment performance series." » "legal environmental performance series.", "legal environmental performances series.", "legal government performance series.", "legal environment performance studies.", "legal environment performance size.", "global environment performance series."

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 environment performance series.") or ("legal environmental governance system."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("legal environment performance series.") OR ("legal environmental governance system.")).
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• Adding a wildcard symbol may retrieve word variants: (("legal environment performance series.") or ("legal environmental governance system."))*.