Perhaps you should try some spelling variations:
"improving court performance series." » "improving court performance studies.", "improving court performance size.", "improving export performance series.", "improving our performance series.", "improving your performance series.", "improving care performance series."
"improve country performance review." » "improve country performance risk.", "improve country performance evidence.", "improve community performance review.", "improve contract performance review.", "improve contrast performance review."

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

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