Perhaps you should try some spelling variations:
"improving past performance measures." » "improving plant performance measures.", "improving port performance measures.", "improving based performance measures.", "improving basic performance measures.", "improving asset performance measures.", "improving land performance measures."
"improving bank performance risk." » "improving market performance risk.", "improving _ performance risk.", "improving firm performance risk.", "improving bank performance size.", "improving bank performance based.", "improving bank performance _.", "improving land performance risk.", "improving urban performance risk.", "improving basic performance risk."

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