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

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

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