Perhaps you should try some spelling variations:
"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."
"harvard world case studies from sources." » "harvard cold case studies from sources.", "harvard world class studies from sources."

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 from series.") or ("harvard world case studies from sources."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("harvard world war studies from series.") OR ("harvard world case studies from sources.")).
• Removing quotes may allow a broader search: (( harvard world war studies from series. ) or ( harvard world case studies from sources. )).
• Adding a wildcard symbol may retrieve word variants: (("harvard world war studies from series.") or ("harvard world case studies from sources."))*.