Perhaps you should try some spelling variations:
harvard blood » harvard cold
from surveys » from survey, firm surveys, force surveys
harvard bad » harvard cold, harvard camp
blood case » good case, blocs case, blood gas
study book » studies book
bad bank » bad banks, land bank, bond bank

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

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