Perhaps you should try some spelling variations:
"global enforcement governance system." » "global empowerment governance system.", "global environmental governance system.", "legal enforcement governance system.", "law enforcement governance system.", "global environment governance system.", "global enforcement governance issues."
"legal environmental performance metrics." » "legal environment performance metrics.", "legal environments performance metrics.", "local environmental performance metrics.", "legal environmental performance contracts.", "legal environmental performance measures.", "legal environmental performance contract."

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (("global enforcement governance system.") or ("legal environmental performance metrics."))~.
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