Perhaps you should try some spelling variations:
"harvard second urban studies from survey." » "harvard cold urban studies from survey.", "harvard beyond urban studies from survey.", "harvard second great studies from survey.", "harvard second bank studies from survey.", "harvard second urban studies firm survey."
"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 survey."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"harvard world bank study from series.\") OR (\"harvard second urban studies from survey.\"))*".
• Removing quotes may allow a broader search: (( harvard world bank study from series. ) OR ( harvard second urban studies from survey. ))*.