Perhaps you should try some spelling variations:
"global environmental governance issues." » "global environment governance issues.", "legal environment governance issues."
"legal environmental performance ratios." » "legal environment performance ratios.", "legal environments performance ratios.", "local environmental performance ratios.", "legal environmental performance ratings.", "legal environmental performance rating.", "legal environmental performance metrics."

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("global environmental governance issues.") OR ("legal environmental performance ratios."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"global environmental governance issues.\") OR (\"legal environmental performance ratios.\"))".
• Removing quotes may allow a broader search: (( global environmental governance issues. ) OR ( legal environmental performance ratios. )).
• Adding a wildcard symbol may retrieve word variants: (("global environmental governance issues.") OR ("legal environmental performance ratios."))*.