Perhaps you should try some spelling variations:
"improving bank performance metrics." » "improving bank performance contracts.", "improving bank performance measures.", "improving bank performance contract.", "improving market performance metrics.", "improving _ performance metrics.", "improving firm performance metrics.", "improving land performance metrics.", "improving urban performance metrics.", "improving basic performance metrics."
"improving public performance series." » "improving building performance series.", "improving specific performance series.", "improving public performance reviews.", "improving public performance review.", "improving public performance targets.", "improving quality performance series."

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

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