Perhaps you should try some spelling variations:
"global government performance review." » "global environmental performance review.", "global government performance risk.", "global government performance evidence.", "local government performance review.", "local governments performance review.", "total government performance review."
"social investment performance series." » "social investment performance studies.", "social investment performance size.", "capital investment performance series.", "initial investment 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: (("social investment performance series.") OR ("global government performance review."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"social investment performance series.\") OR (\"global government performance review.\"))".
• Removing quotes may allow a broader search: (( social investment performance series. ) OR ( global government performance review. )).
• Adding a wildcard symbol may retrieve word variants: (("social investment performance series.") OR ("global government performance review."))*.