Perhaps you should try some spelling variations:
"improving care performance metrics." » "improving care performance contracts.", "improving care performance measures.", "improving care performance contract.", "improving market performance metrics.", "improving trade performance metrics.", "improving court performance metrics.", "improving water performance metrics.", "improving early performance metrics.", "improving land performance metrics."
"improving _ performance series." » "improving _ performance reviews.", "improving _ performance review.", "improving _ performance targets."

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

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