Perhaps you should try some spelling variations:
"harvard world war studies book series." » "harvard world case studies book series.", "harvard world bank studies book series."
"harvard world war studies from series." » "harvard world case studies from series.", "harvard world bank studies from series.", "harvard world war studies from sources.", "harvard world war studies from service.", "harvard world war studies from surveys."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("harvard world war studies book series.") or ("harvard world war studies from series."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("harvard world war studies book series.") OR ("harvard world war studies from series."))*.
• Removing quotes may allow a broader search: (( harvard world war studies book series. ) or ( harvard world war studies from series. ))*.