Perhaps you should try some spelling variations:
"old book discussion papers" » "old book discussion paper", "old book discussion part", "old book discussion panel", "old work discussion papers", "old shock discussion papers", "old livebook discussion papers", "old books discussion papers", "old boy discussion papers", "old bond discussion papers", "olred book discussion papers"
"d book discussion papers" » "d book discussion paper", "d book discussion part", "d book discussion panel", "d work discussion papers", "d shock discussion papers", "d livebook discussion papers", "red book discussion papers"

Try widening your search to All Fields.

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• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"old book discussion papers\") OR (\"d book discussion papers\"))".
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