Perhaps you should try some spelling variations:
"improving human performance metrics." » "improving human performance measures.", "improving loan performance metrics.", "improving thermal performance metrics.", "improving chain performance metrics."
"Improving human performance review." » "Improving human performance risk.", "Improving human performance evidence.", "Improving loan performance review.", "Improving thermal performance review.", "Improving chain 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 review.") OR ("improving human performance metrics."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"Improving human performance review.\") OR (\"improving human performance metrics.\"))".
• Removing quotes may allow a broader search: (( Improving human performance review. ) OR ( improving human performance metrics. )).
• Adding a wildcard symbol may retrieve word variants: (("Improving human performance review.") OR ("improving human performance metrics."))*.