Perhaps you should try some spelling variations:
"Improving loan performance review." » "Improving loan performance risk.", "Improving loan performance evidence.", "Improving poor performance review.", "Improving bank performance review.", "Improving _ performance review."
"improving human performance series." » "improving human performance metrics.", "improving human performance reviews.", "improving human performance targets.", "improving thermal performance series.", "improving company performance series.", "improving animal performance series.", "improving urban performance series.", "improving rural performance series."
improving loan » improving local, improving land, improving road

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