Perhaps you should try some spelling variations:
"harvard world war studies book series." » "harvard world war studies from series.", "harvard world case studies book series."
"harvard world bank studies firm surveys." » "harvard world urban studies firm surveys.", "harvard world case studies firm surveys.", "harvard world bank study firm surveys.", "harvard world bank studies from surveys.", "harvard world bank studies food surveys.", "harvard world bank studies pre surveys.", "harvard world bank studies firm survey."

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

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