Perhaps you should try some spelling variations:
"harvard world bank study ebook series." » "harvard world bank study book series.", "harvard world bank study textbook series.", "harvard world bank study yearbook series.", "harvard world bank study facebook series."
"harvard cold urban studies from sources." » "harvard clld urban studies from sources.", "harvard world urban studies from sources.", "harvard good urban studies from sources."

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 ebook series.") or ("harvard cold urban studies from sources."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("harvard world bank study ebook series.") OR ("harvard cold urban studies from sources."))*.
• Removing quotes may allow a broader search: (( harvard world bank study ebook series. ) or ( harvard cold urban studies from sources. ))*.