Perhaps you should try some spelling variations:
"global environmental governance series." » "global environmental performance series.", "global environment governance series.", "legal environment governance series.", "global environmental governance issues.", "global environmental governance system."
"global enforcement governance series." » "global empowerment governance series.", "legal enforcement governance series.", "law enforcement governance series.", "global environment governance series.", "global enforcement governance issues.", "global enforcement governance system."

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