Perhaps you should try some spelling variations:
"harvard world bank story books series." » "harvard world bank story book series.", "harvard world bank story books strips.", "harvard world bank story booklet series.", "harvard world bank history books series.", "harvard world bank history book series.", "harvard world bank study books series.", "harvard world bank stock books series."
"harvard cold case studies from series." » "harvard cold case studies rom series.", "harvard cold case studies from services.", "harvard cold case studies forum series.", "harvard world case studies from series.", "harvard cold call studies from series.", "harvard cold wave studies from series."

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

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