Perhaps you should try some spelling variations:
"improving can performance metrics." » "improving can performance contracts.", "improving can performance measures.", "improving can performance contract.", "improving bank performance metrics.", "improving loan performance metrics.", "improving care performance metrics.", "improving land performance metrics.", "improving tax performance metrics.", "improving co performance metrics."
"improving road performance series." » "improving road performance reviews.", "improving road performance review.", "improving road performance targets.", "improving board performance series.", "improving loan performance series.", "improving good performance series.", "improving food performance series.", "improving urban performance series.", "improving rural 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 road performance series.") or ("improving can performance metrics."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("improving road performance series.") OR ("improving can performance metrics.")).
• Removing quotes may allow a broader search: (( improving road performance series. ) or ( improving can performance metrics. )).
• Adding a wildcard symbol may retrieve word variants: (("improving road performance series.") or ("improving can performance metrics."))*.