Perhaps you should try some spelling variations:
"harvard cold urban studies from services." » "harvard cold urban studies from service.", "harvard cold urban studies m services.", "harvard clld urban studies from services.", "harvard world urban studies from services.", "harvard good urban studies from services."
"harvard home base study book series." » "harvard camp base study book series.", "harvard home based study book series.", "harvard home case study book series.", "harvard home 4ase study book series.", "harvard home base studies book series.", "harvard homes based study book series.", "harvard comme base study 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 cold urban studies from services.") or ("harvard home base study book series."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("harvard cold urban studies from services.") OR ("harvard home base study book series.")).
• Removing quotes may allow a broader search: (( harvard cold urban studies from services. ) or ( harvard home base study book series. )).
• Adding a wildcard symbol may retrieve word variants: (("harvard cold urban studies from services.") or ("harvard home base study book series."))*.