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

Try widening your search to All Fields.

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