Perhaps you should try some spelling variations:
"image contrast performance contract." » "image contract performance contract.", "image contractor performance contract.", "image control performance contract.", "image contrast performance contracts.", "images contrast performance contract."
"improving loan performance series." » "improving loan performance studies.", "improving loan performance size.", "improving local performance series.", "improving land performance series.", "improving lead performance series."

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

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