Perhaps you should try some spelling variations:
"improving country performance contract." » "improving country performance contracts.", "improving voluntary performance contract.", "importing country performance contract.", "borrowing country performance contract."
"improving loan performance reviews." » "improving loan performance review.", "improving loan performance reports.", "improving loan performance risks.", "improving poor performance reviews.", "improving bank performance reviews.", "improving _ performance reviews.", "improving local performance reviews.", "improving land performance reviews.", "improving road performance reviews."

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

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