Perhaps you should try some spelling variations:
"bank currency pegs." » "banking currency pegs.", "basket currency pegs.", "based currency pegs.", "bank currency peg.", "bank currency areas.", "bank currency debt."
"bk current based." » "bk content based.", "bk cement based.", "bk consent based.", "bk currents based.", "3 current based.", "2 current based."
"bk current aid." » "bk current agile.", "bk current armed.", "bk current care.", "bk currents aid.", "3 current aid.", "2 current aid."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("bank currency pegs.") or ((("bk current aid.") OR ("bk current based."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("bank currency pegs.") OR ((("bk current aid.") OR ("bk current based.")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"bank currency pegs.\") or (((\"bk current aid.\") OR (\"bk current based.\"))))".
• Removing quotes may allow a broader search: (( bank currency pegs. ) or ((( bk current aid. ) OR ( bk current based. )))).
• Adding a wildcard symbol may retrieve word variants: (("bank currency pegs.") or ((("bk current aid.") OR ("bk current based."))))*.