Perhaps you should try some spelling variations:
"improving safety performance based." » "improving market performance based.", "improving key performance based.", "improving safety performance measures.", "improving quality performance based.", "improving water performance based."
"improving local performance review." » "improving local performance risk.", "improving local performance evidence.", "improving social performance review.", "improving loan performance review.", "improving fiscal performance review.", "improving global performance review."

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

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