Perhaps you should try some spelling variations:
"improving e performance metrics." » "improving e performance measures.", "improving 2 performance metrics.", "improving use performance metrics.", "improving 2.1 performance metrics.", "improving ex performance metrics.", "improving _ performance metrics.", "improving a performance metrics."
"improving care performance risks." » "improving care performance risk.", "improving trade performance risks.", "improving drive performance risks.", "improving 2 performance risks.", "improving early performance risks.", "improving air performance risks.", "improving data performance risks.", "improving car2 performance risks.", "improving caruse performance risks.", "improving car2.1 performance risks."

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

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