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