Perhaps you should try some spelling variations:
studies formal » studies thermal, studies female, studies german
formal surveys » firm surveys, force surveys, social surveys
harvard blood » harvard cold
harvard good » harvard cold, harvard home
bank studies » urban studies, bank study
from survey » firm survey
good bank » good bad

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 bank studies formal surveys. ) or ( harvard blood bank studies from survey. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( harvard good bank studies formal surveys. ) OR ( harvard blood bank studies from survey. )).
• Adding a wildcard symbol may retrieve word variants: (( harvard good bank studies formal surveys. ) or ( harvard blood bank studies from survey. ))*.