Perhaps you should try some spelling variations:
"harvard cold bank study from services." » "harvard cold bank study from service.", "harvard cold bank study m services.", "harvard cold bank studies from services.", "harvard bond bank study from services.", "harvard good bank study from services.", "harvard food bank study from services."
"harvard world bank studies book series." » "harvard world urban studies book series.", "harvard world bank studies books series.", "harvard world bank studies ebook series."

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

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