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 co performance based."
"improving poor performance data." » "improving export performance data.", "improving sector performance data.", "improving _ performance data.", "improving poor performance _.", "improving power performance data.", "improving food performance data.", "improving indoor performance data."

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