Perhaps you should try some spelling variations:
"improving human performance reviews." » "improving human performance reports.", "improving human performance risks.", "improving human performance results.", "improving human performance evidences.", "improving loan performance reviews.", "improving thermal performance reviews.", "improving chain performance reviews."
"improving local performance review." » "improving local performance risk.", "improving local performance evidence.", "improving social performance review.", "improving global performance review.", "improving total performance review.", "improving fiscal 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 human performance reviews.") or ("improving local performance review."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("improving human performance reviews.") OR ("improving local performance review.")).
• Removing quotes may allow a broader search: (( improving human performance reviews. ) or ( improving local performance review. )).
• Adding a wildcard symbol may retrieve word variants: (("improving human performance reviews.") or ("improving local performance review."))*.