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."
"direct investment governance series." » "direct investment finance series.", "direct investment insurance series.", "direct internet governance series.", "direct investment governance system.", "directly investment governance series."

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

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