Perhaps you should try some spelling variations:
"Improving company performance measures." » "Improving country performance measures."
improving company » improve company, improving compliance, improving community
"improving thermal performance metrics." » "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 measures.") OR ("improving thermal performance metrics."))~.
• Removing quotes may allow a broader search: (( Improving company performance measures. ) or ( improving thermal performance metrics. ))~.
• Adding a wildcard symbol may retrieve word variants: (("Improving company performance measures.") or ("improving thermal performance metrics."))*.