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

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (("improving company performance review.") OR ("improving thermal performance metrics."))~.
• Removing quotes may allow a broader search: (( improving company performance review. ) or ( improving thermal performance metrics. ))~.
• Adding a wildcard symbol may retrieve word variants: (("improving company performance review.") or ("improving thermal performance metrics."))*.