Perhaps you should try some spelling variations:
"improving lead performance metrics." » "improving lead performance measures.", "improving end performance metrics.", "improving esd performance metrics.", "improving reward performance metrics.", "improving legal performance metrics.", "improving land performance metrics.", "improving eap performance metrics."
"improving road performance targets." » "improving board performance targets.", "improving good performance targets.", "improving bond performance targets.", "improving food performance targets.", "improving rural 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 road performance targets.") or ("improving lead performance metrics."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("improving road performance targets.") OR ("improving lead performance metrics.")).
• Removing quotes may allow a broader search: (( improving road performance targets. ) or ( improving lead performance metrics. )).
• Adding a wildcard symbol may retrieve word variants: (("improving road performance targets.") or ("improving lead performance metrics."))*.