Perhaps you should try some spelling variations:
"improving human performance review." » "improving human performance risk.", "improving human performance evidence.", "improving loan performance review.", "improving thermal performance review.", "improving chain performance review."
"improving local performance audit." » "improving social performance audit.", "improving global performance audit.", "improving total performance audit.", "improving local performance audits.", "improving local performance a.", "improving fiscal performance audit."

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

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