Perhaps you should try some spelling variations:
"harvard good case studies from series." » "harvard good case studies from sources.", "harvard good case studies from service.", "harvard good case studies from surveys.", "harvard food case studies from series."
"harvard cold urban studies book series." » "harvard good urban studies book series.", "harvard cost urban studies book series.", "harvard second urban studies book 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 good case studies from series.") or ("harvard cold urban studies book series."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("harvard good case studies from series.") OR ("harvard cold urban studies book series.")).
• Removing quotes may allow a broader search: (( harvard good case studies from series. ) or ( harvard cold urban studies book series. )).
• Adding a wildcard symbol may retrieve word variants: (("harvard good case studies from series.") or ("harvard cold urban studies book series."))*.