Perhaps you should try some spelling variations:
"improving statistics performance metrics." » "improving statistical performance metrics.", "improving logistics performance metrics.", "improving logistic performance metrics.", "import statistics performance metrics.", "improving statistics performance contracts.", "improving statistics performance measures.", "improving statistics performance contract."
"improving basic performance risk." » "improving based performance risk.", "improving bank performance risk.", "improving past performance risk.", "improving basic performance size.", "improving basic performance based.", "improving basic performance _.", "improving air performance risk.", "improve basic performance risk.", "improving public performance risk."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("improving statistics performance metrics.") or ("improving basic performance risk."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("improving statistics performance metrics.") OR ("improving basic performance risk.")).
• Removing quotes may allow a broader search: (( improving statistics performance metrics. ) or ( improving basic performance risk. )).
• Adding a wildcard symbol may retrieve word variants: (("improving statistics performance metrics.") or ("improving basic performance risk."))*.