Perhaps you should try some spelling variations:
"harvard bond bank study book series." » "harvard home bank study book series.", "harvard bond bank studies book series.", "harvard blood bank study book series.", "harvard land bank study book series.", "harvard bad bank study book series."
"harvard cold urban studies food surveys." » "harvard cold urban studies from surveys.", "harvard cold urban students food surveys.", "harvard cold urban studies field surveys.", "harvard cold urban studies force surveys.", "harvard clld urban studies food surveys.", "harvard world urban studies food surveys.", "harvard good urban studies food surveys."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("harvard bond bank study book series.") or ("harvard cold urban studies food surveys."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("harvard bond bank study book series.") OR ("harvard cold urban studies food surveys.")).
• Removing quotes may allow a broader search: (( harvard bond bank study book series. ) or ( harvard cold urban studies food surveys. )).
• Adding a wildcard symbol may retrieve word variants: (("harvard bond bank study book series.") or ("harvard cold urban studies food surveys."))*.