Perhaps you should try some spelling variations:
"sunk series in global environment policy" » "sunk series in global environmental policies", "sunk series in global environmental politics", "suny series in global environment policy"
"bank series in global environmental policy" » "bank services in global environmental policy", "book series in global environmental policy", "talk series in global environmental policy"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("bank series in global environmental policy") OR ("sunk series in global environment policy"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"bank series in global environmental policy\") OR (\"sunk series in global environment policy\"))".
• Removing quotes may allow a broader search: (( bank series in global environmental policy ) OR ( sunk series in global environment policy )).
• Adding a wildcard symbol may retrieve word variants: (("bank series in global environmental policy") OR ("sunk series in global environment policy"))*.