Perhaps you should try some spelling variations:
"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."
"improving crop performance metrics." » "improving crop performance contracts.", "improving crop performance measures.", "improving crop performance contract.", "improving poor performance metrics.", "improving job performance metrics.", "improving city performance metrics.", "improving co performance metrics.", "improving macro performance metrics.", "improving food performance metrics."

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