Perhaps you should try some spelling variations:
"harvard second urban studies from surveys." » "harvard cold urban studies from surveys.", "harvard beyond urban studies from surveys.", "harvard second great studies from surveys.", "harvard second bank studies from surveys.", "harvard second urban studies from survey.", "harvard second urban studies firm surveys.", "harvard second urban studies force surveys."
"harvard world bank study from series." » "harvard cold bank study from series.", "harvard world bank study rom series.", "harvard world bank study from services.", "harvard world bank study forum series."

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("harvard world bank study from series.") or ("harvard second urban studies from surveys."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("harvard world bank study from series.") OR ("harvard second urban studies from surveys."))*.
• Removing quotes may allow a broader search: (( harvard world bank study from series. ) or ( harvard second urban studies from surveys. ))*.