Perhaps you should try some spelling variations:
"harvard good urban studies from surveys." » "harvard good urban studies from survey.", "harvard good urban studies firm surveys.", "harvard good urban studies force surveys.", "harvard food urban studies from surveys."
"harvard world bank study book series." » "harvard world bank study books series.", "harvard world bank study 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 world bank study book series.") OR ("harvard good urban studies from surveys."))~.
• Removing quotes may allow a broader search: (( harvard world bank study book series. ) or ( harvard good urban studies from surveys. ))~.
• Adding a wildcard symbol may retrieve word variants: (("harvard world bank study book series.") or ("harvard good urban studies from surveys."))*.