Perhaps you should try some spelling variations:
"harvard world urban studies book series." » "harvard cold urban studies book series.", "harvard worst urban studies book series.", "harvard world urban studies books series.", "harvard world urban studies ebook series."
"harvard world bank studies from series." » "harvard cold bank studies from series.", "harvard world bank study from series.", "harvard world bank studies rom series.", "harvard world bank studies from services.", "harvard world bank studies 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 urban studies book series.") or ("harvard world bank studies from series."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("harvard world urban studies book series.") OR ("harvard world bank studies from series."))*.
• Removing quotes may allow a broader search: (( harvard world urban studies book series. ) or ( harvard world bank studies from series. ))*.