Perhaps you should try some spelling variations:
harvard good » harvard cold, harvard home
bank studies » bank study
from surveys » from survey, firm surveys, force surveys
harvard clld » harvard cold, harvard camp
clld urban » led urban
good bank » blood bank, good bad
book » books, ebook

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 good bank studies from surveys. ) OR ( harvard clld urban studies book series. ))~.
• Adding a wildcard symbol may retrieve word variants: (( harvard good bank studies from surveys. ) or ( harvard clld urban studies book series. ))*.