Perhaps you should try some spelling variations:
"harvard world bank studies book series." » "harvard cold 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 good bank studies from surveys." » "harvard cold bank studies from surveys.", "harvard home bank studies from surveys.", "harvard good urban studies from surveys.", "harvard good bank study from surveys.", "harvard good bank studies from survey.", "harvard good bank studies firm surveys.", "harvard good bank studies force surveys.", "harvard blood bank studies from surveys.", "harvard good bad 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 good bank studies from surveys.") or ("harvard world bank studies book series."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("harvard good bank studies from surveys.") OR ("harvard world bank studies book series.")).
• Removing quotes may allow a broader search: (( harvard good bank studies from surveys. ) or ( harvard world bank studies book series. )).
• Adding a wildcard symbol may retrieve word variants: (("harvard good bank studies from surveys.") or ("harvard world bank studies book series."))*.