Perhaps you should try some spelling variations:
"improving compliance performance metrics." » "improving competence performance metrics.", "improving company performance metrics.", "improving competencies performance metrics.", "proving compliance performance metrics.", "improving governance performance metrics.", "improving compliance performance measures."
"improving thermal performance series." » "improving thermal performance studies.", "improving thermal performance size.", "improving external performance series.", "improving animal performance series.", "improving erm 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 thermal performance series.") or ("improving compliance performance metrics."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("improving thermal performance series.") OR ("improving compliance performance metrics."))*.
• Removing quotes may allow a broader search: (( improving thermal performance series. ) or ( improving compliance performance metrics. ))*.