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

Try widening your search to All Fields.

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