Perhaps you should try some spelling variations:
"harvard good bank study from survey." » "harvard cold bank study from survey.", "harvard home bank study from survey.", "harvard good bank study firm survey.", "harvard good bank studies from survey.", "harvard blood bank study from survey.", "harvard good bad study from survey."
"harvard land bank studies food surveys." » "harvard cold bank studies food surveys.", "harvard camp bank studies food surveys.", "harvard land urban studies food surveys.", "harvard land bank studies from surveys.", "harvard land bank students food surveys.", "harvard land bank studies field surveys.", "harvard land bank studies force surveys.", "harvard land banks studies food surveys."

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"harvard good bank study from survey.\") OR (\"harvard land bank studies food surveys.\"))~".
• Removing quotes may allow a broader search: (( harvard good bank study from survey. ) OR ( harvard land bank studies food surveys. ))~.
• Adding a wildcard symbol may retrieve word variants: (("harvard good bank study from survey.") OR ("harvard land bank studies food surveys."))*.