Perhaps you should try some spelling variations:
"improving loan performance series." » "improving loan performance metrics.", "improving loan performance reviews.", "improving loan performance review.", "improving poor performance series.", "improving bank performance series.", "improving _ performance series.", "improving local performance series.", "improving land performance series.", "improving road performance series."
"improving entry performance evidence." » "improving energy performance evidence.", "improving country performance evidence.", "improving city performance evidence.", "improving central performance evidence.", "improving mental performance evidence."

Try widening your search to All Fields.

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

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