Perhaps you should try some spelling variations:
"improving care performance based." » "improving care performance measures.", "improving market performance based.", "improving trade performance based.", "improving court performance based.", "improving water performance based.", "improving early performance based.", "improving land performance based."
"improving bank performance risk." » "improving market performance risk.", "improving _ performance risk.", "improving firm performance risk.", "improving bank performance size.", "improving bank performance _.", "improving bank performance data.", "improving land performance risk.", "improving urban performance risk.", "improving basic performance risk."

Try widening your search to All Fields.

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 based.") or ("improving bank performance risk."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("improving care performance based.") OR ("improving bank performance risk.")).
• Removing quotes may allow a broader search: (( improving care performance based. ) or ( improving bank performance risk. )).
• Adding a wildcard symbol may retrieve word variants: (("improving care performance based.") or ("improving bank performance risk."))*.