Perhaps you should try some spelling variations:
studies force » studies formal, studies from, studies food
force surveys » force survey, firm surveys
harvard good » harvard home
bad studies » based studies, eadi studies, oecd studies
cold urban » clld urban, world urban, good urban
book » books, ebook

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