Perhaps you should try some spelling variations:
"harvard cold bank study from service." » "harvard cold bank study from serbia.", "harvard cold bank studies from service.", "harvard world bank study from service.", "harvard bond bank study from service.", "harvard good bank study from service."
"harvard world urban studies book series." » "harvard worst urban studies book series.", "harvard world urban studies books series.", "harvard world urban studies ebook series."

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 cold bank study from service.") OR ("harvard world urban studies book series."))~.
• Removing quotes may allow a broader search: (( harvard cold bank study from service. ) or ( harvard world urban studies book series. ))~.
• Adding a wildcard symbol may retrieve word variants: (("harvard cold bank study from service.") or ("harvard world urban studies book series."))*.