Perhaps you should try some spelling variations:
"improving company performance series." » "improving country performance series.", "improving loan performance series.", "improving corporate performance series.", "improving company performance metrics.", "improving company performance review.", "improving company performance targets.", "improving human performance series."
"improving urban performance reviews." » "improving urban performance review.", "improving urban performance reports.", "improving urban performance risks.", "improving bank performance reviews.", "improving loan performance reviews.", "improving can performance reviews."

Try widening your search to All Fields.

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

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