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

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 measures.") or ("global environmental governance issues."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("legal environment performance measures.") OR ("global environmental governance issues.")).
• Removing quotes may allow a broader search: (( legal environment performance measures. ) or ( global environmental governance issues. )).
• Adding a wildcard symbol may retrieve word variants: (("legal environment performance measures.") or ("global environmental governance issues."))*.