Perhaps you should try some spelling variations:
"harvard bond case studies book series." » "harvard bond case studies from series.", "harvard bond cash studies book series.", "harvard bond rate studies book series.", "harvard bond sale studies book series."
"harvard flood bank studies book series." » "harvard flood bank studies from series.", "harvard flood urban studies book series.", "harvard flood bank study book series.", "harvard blood bank studies book series.", "harvard food bank studies book series.", "harvard blood banks studies book 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 bond case studies book series.") or ("harvard flood bank studies book series."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("harvard bond case studies book series.") OR ("harvard flood bank studies book series.")).
• Removing quotes may allow a broader search: (( harvard bond case studies book series. ) or ( harvard flood bank studies book series. )).
• Adding a wildcard symbol may retrieve word variants: (("harvard bond case studies book series.") or ("harvard flood bank studies book series."))*.