Perhaps you should try some spelling variations:
"improving company performance metrics." » "improving company performance measures.", "improving country performance metrics.", "improve company performance metrics.", "improving compliance performance metrics.", "improving community performance metrics."
"improving thermal performance contracts." » "improving external performance contracts.", "improving animal performance contracts.", "improving erm performance contracts."

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

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