Perhaps you should try some spelling variations:
"harvard cold bank studies book series." » "harvard cold urban studies book series.", "harvard cold case studies book series.", "harvard cold bank study book series.", "harvard bond bank studies book series.", "harvard good bank studies book series.", "harvard food bank studies book series."
"harvard world bank studies from series." » "harvard world urban studies from series.", "harvard world case studies from series.", "harvard world bank study from series.", "harvard world bank studies from sources.", "harvard world bank studies from service.", "harvard world bank studies from surveys."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("harvard cold bank studies book series.") OR ("harvard world bank studies from series."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"harvard cold bank studies book series.\") OR (\"harvard world bank studies from series.\"))".
• Removing quotes may allow a broader search: (( harvard cold bank studies book series. ) OR ( harvard world bank studies from series. )).
• Adding a wildcard symbol may retrieve word variants: (("harvard cold bank studies book series.") OR ("harvard world bank studies from series."))*.