Perhaps you should try some spelling variations:
"harvard world bank study book series." » "harvard cold bank study book series.", "harvard world bank studies book series."
"harvard world war studies from series." » "harvard cold war studies from series.", "harvard world war stories from series.", "harvard world early studies from series.", "harvard world war studies rom series.", "harvard world war studies from services.", "harvard world war studies forum series."

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 bank study book series.") OR ("harvard world war studies from series."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"harvard world bank study book series.\") OR (\"harvard world war studies from series.\"))".
• Removing quotes may allow a broader search: (( harvard world bank study book series. ) OR ( harvard world war studies from series. )).
• Adding a wildcard symbol may retrieve word variants: (("harvard world bank study book series.") OR ("harvard world war studies from series."))*.