Perhaps you should try some spelling variations:
"harvard bond cases studies book series." » "harvard bond based studies book series.", "harvard bond cost studies book series.", "harvard cold cases studies book series.", "harvard home cases studies book series.", "harvard bond case studies book series.", "harvard bond sales studies book series.", "harvard bond rates studies book series.", "harvard bond cases studies books series.", "harvard bond cases studies ebook series."
"harvard id case studies from survey." » "harvard id case studies firm survey.", "harvard u case studies from survey.", "harvard cold case studies from survey."

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 id case studies from survey.") OR ("harvard bond cases studies book series."))~.
• Removing quotes may allow a broader search: (( harvard id case studies from survey. ) or ( harvard bond cases studies book series. ))~.
• Adding a wildcard symbol may retrieve word variants: (("harvard id case studies from survey.") or ("harvard bond cases studies book series."))*.