Perhaps you should try some spelling variations:
"global environment performance series." » "global environmental performance series.", "global environmental performances series.", "global government performance series.", "global environment performance size."
"local governments performance studies." » "local government's performance studies.", "local government performance studies.", "local governance performance studies.", "local governments performance audits.", "local governments performance audit.", "local governments performance standards."

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

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