Perhaps you should try some spelling variations:
"improving court performance evidence." » "improving country performance evidence.", "improving export performance evidence.", "improving firm performance evidence.", "improving adult performance evidence.", "improving co performance evidence.", "improving youth performance evidence."
"improve care performance risk." » "improve care performance size.", "improve care performance based.", "improve care performance _.", "improve market performance risk.", "improve trade performance risk.", "improve firm performance risk.", "improve water performance risk.", "improve early performance risk.", "improve state performance risk."

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

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