Perhaps you should try some spelling variations:
"harvard good urban studies food surveys." » "harvard good urban studies from surveys.", "harvard good urban studies led surveys.", "harvard good urban studies force surveys.", "harvard good urban studies field surveys."
"harvard bond bank studies firm surveys." » "harvard bond case studies firm surveys.", "harvard bond bank study firm surveys.", "harvard bond bank studies from surveys.", "harvard bond bank studies pre surveys.", "harvard bond bank studies firm survey.", "harvard blood bank studies firm surveys.", "harvard land bank studies firm surveys.", "harvard bad bank studies firm 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 good urban studies food surveys.") or ("harvard bond bank studies firm surveys."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("harvard good urban studies food surveys.") OR ("harvard bond bank studies firm surveys.")).
• Removing quotes may allow a broader search: (( harvard good urban studies food surveys. ) or ( harvard bond bank studies firm surveys. )).
• Adding a wildcard symbol may retrieve word variants: (("harvard good urban studies food surveys.") or ("harvard bond bank studies firm surveys."))*.