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