Perhaps you should try some spelling variations:
"improving can performance based." » "improving can performance measures.", "improving bank performance based.", "improving loan performance based.", "improving care performance based.", "improving land performance based.", "improving tax performance based.", "improving urban performance based."
"improving co performance risk." » "improving co performance size.", "improving co performance _.", "improving co performance data.", "improving do performance risk.", "improving crop performance risk.", "improving job performance risk.", "improving _ performance risk.", "improving macro performance risk.", "improving food performance risk."

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

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