Perhaps you should try some spelling variations:
"improving court performance review." » "improving court performance risk.", "improving court performance evidence.", "improving country performance review.", "improving export performance review.", "improving our performance review.", "improving your performance review.", "improving care performance review."
"improving social performance series." » "improving school performance series.", "improving fiscal performance series.", "improving financial performance series.", "improving social performance studies.", "improving social performance size."

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