Perhaps you should try some spelling variations:
"harvard world bank study book series." » "harvard cold bank study book series.", "harvard world bank studies book series."
"harvard cost urban studies from series." » "harvard cold urban studies from series.", "hardware cost urban studies from series.", "harvard camp urban studies from series.", "harvard cost urban studies rom series.", "harvard cost urban studies from services.", "harvard cost urban studies forum series.", "harvard most urban studies from series.", "harvard worst urban studies from series.", "harvard bust urban studies from series."

Try widening your search to All Fields.

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 study book series.") or ("harvard cost urban studies from series."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("harvard world bank study book series.") OR ("harvard cost urban studies from series.")).
• Removing quotes may allow a broader search: (( harvard world bank study book series. ) or ( harvard cost urban studies from series. )).
• Adding a wildcard symbol may retrieve word variants: (("harvard world bank study book series.") or ("harvard cost urban studies from series."))*.