Perhaps you should try some spelling variations:
"harvard land case studies from sources." » "harvard land case studies fuel sources.", "harvard land case studies from survey.", "harvard land based studies from sources.", "harvard land lease studies from sources.", "harvard land code studies from sources."
"harvard bond sale studies book series." » "harvard bond cases studies book series.", "harvard bond bank studies book series.", "harvard bond use studies book series.", "harvard bond sales studies book series.", "harvard bond rate studies book series."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("harvard land case studies from sources.") or ("harvard bond sale studies book series."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("harvard land case studies from sources.") OR ("harvard bond sale studies book series."))*.
• Removing quotes may allow a broader search: (( harvard land case studies from sources. ) or ( harvard bond sale studies book series. ))*.