Perhaps you should try some spelling variations:
harvard blood » harvard cold
harvard bond » harvard cold, harvard home
cash studies » case studies, cass studies, cases studies
blood urban » flood urban, good urban, beyond urban
bond cash » bond case, und cash, bond math
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 bond cash studies book series. ) or ( harvard blood urban studies book series. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( harvard bond cash studies book series. ) OR ( harvard blood urban studies book series. )).
• Adding a wildcard symbol may retrieve word variants: (( harvard bond cash studies book series. ) or ( harvard blood urban studies book series. ))*.