Perhaps you should try some spelling variations:
"local governments performance series." » "local government's performance series.", "local governance performance series.", "local governing performance series.", "local governments performance studies.", "local governments performance size.", "local government performance series."
"level government performance contract." » "level environmental performance contract.", "level government performance contracts.", "level governments performance contract.", "travel government performance contract.", "local government performance contract."

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

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