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