Perhaps you should try some spelling variations:
"improving export performance reviews." » "improving export performance review.", "improving export performance reports.", "improving export performance risks.", "improving labor performance reviews.", "emerging export performance reviews.", "improving upper performance reviews."
"improving job performance metrics." » "improving job performance contracts.", "improving job performance measures.", "improving job performance contract.", "improving poor performance metrics.", "improving loan performance metrics.", "improving port performance metrics.", "improving co performance metrics.", "improving food performance metrics.", "improving road performance metrics."

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

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