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