Perhaps you should try some spelling variations:
"improving local performance review." » "improving local performance risk.", "improving local performance evidence.", "improving social performance review.", "improving global performance review.", "improving total performance review.", "improving fiscal performance review."
"improving und performance measures." » "improving fund performance measures.", "improving funds performance measures.", "improving good performance measures.", "improving food performance measures.", "improving burn performance measures.", "improving feed performance measures."

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