Perhaps you should try some spelling variations:
"improving good performance metrics." » "improving good performance contracts.", "improving good performance measures.", "improving good performance contract.", "improving poor performance metrics.", "improving loan performance metrics.", "improving fund performance metrics.", "improving food performance metrics.", "improving road performance metrics.", "improving land performance metrics."
"improving _ performance series." » "improving _ performance reviews.", "improving _ performance review.", "improving _ performance targets."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("improving _ performance series.") or ("improving good performance metrics."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("improving _ performance series.") OR ("improving good performance metrics."))*.
• Removing quotes may allow a broader search: (( improving _ performance series. ) or ( improving good performance metrics. ))*.