Perhaps you should try some spelling variations:
"improved bank performance review." » "improved bank performance risk.", "improved market performance review.", "improved _ performance review.", "improved firm performance review.", "improve bank performance review.", "improved land performance review.", "improved urban performance review."
"improving human performance evidence." » "improving loan performance evidence.", "improving thermal performance evidence.", "improving company performance evidence.", "improving urban performance evidence.", "improving rural performance evidence."

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

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