Perhaps you should try some spelling variations:
"harvard cold urban studies ebook series." » "harvard cold urban studies book series.", "harvard cold urban studies textbook series.", "harvard cold urban studies yearbook series.", "harvard clld urban studies ebook series.", "harvard world urban studies ebook series.", "harvard good urban studies ebook series."
"harvard good east studies from surveys." » "harvard home east studies from surveys.", "harvard good cost studies from surveys.", "harvard good peasant studies from surveys.", "harvard good event studies from surveys.", "harvard good east studies from survey.", "harvard good east studies firm surveys.", "harvard good east studies force surveys.", "harvard good taste studies from surveys.", "harvard good case studies from surveys.", "harvard good cash studies from surveys."

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 good east studies from surveys.") OR ("harvard cold urban studies ebook series."))~.
• Removing quotes may allow a broader search: (( harvard good east studies from surveys. ) or ( harvard cold urban studies ebook series. ))~.
• Adding a wildcard symbol may retrieve word variants: (("harvard good east studies from surveys.") or ("harvard cold urban studies ebook series."))*.