Perhaps you should try some spelling variations:
"harvard second rural studies book series." » "harvard cold rural studies book series.", "harvard second rural students book series.", "harvard second israel studies book series.", "harvard second legal studies book series.", "harvard second rural studies books series.", "harvard second rural studies ebook series."
"harvard world bank study from series." » "harvard cold bank study from series.", "harvard world bank study rom series.", "harvard world bank study from services.", "harvard world bank study forum series.", "harvard world bank 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 study from series.") OR ("harvard second rural studies book series."))~.
• Removing quotes may allow a broader search: (( harvard world bank study from series. ) or ( harvard second rural studies book series. ))~.
• Adding a wildcard symbol may retrieve word variants: (("harvard world bank study from series.") or ("harvard second rural studies book series."))*.