Perhaps you should try some spelling variations:
"global environment governance issues." » "global environmental governance issues.", "global evironmental governance issues.", "global environment government issues."
"global environmental performance system." » "global environmental performance states.", "global environmental performance sse3.", "global environmental performance instead."

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