Perhaps you should try some spelling variations:
"global environment governance series." » "global environmental governance series.", "global evironmental governance series.", "global environment government series.", "global environment governance system."
"legal investment spending sources." » "legal government spending sources.", "real investment spending sources.", "local investment spending sources.", "global investment spending sources.", "legal investment funding sources.", "legal investment reading sources.", "legal investment spending policies."

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 governance series.") or ("legal investment spending sources."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("global environment governance series.") OR ("legal investment spending sources.")).
• Removing quotes may allow a broader search: (( global environment governance series. ) or ( legal investment spending sources. )).
• Adding a wildcard symbol may retrieve word variants: (("global environment governance series.") or ("legal investment spending sources."))*.