Perhaps you should try some spelling variations:
"harold bridger transitional series." » "harold der transitional series.", "harold gissel transitional series.", "harold order transitions series.", "harold bridger transition series.", "harold bridger transitions series.", "harold bridger transitional periods.", "harold bradley transitional series."
"harold bridges transition periods." » "harold beveridge transition periods.", "harold bridge truncation periods.", "harold brittle transition periods.", "harold bridges transition period.", "harold bridges transition series.", "road bridges transition periods.", "harold bradley transition periods."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("harold bridger transitional series.") or ("harold bridges transition periods."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("harold bridger transitional series.") OR ("harold bridges transition periods.")).
• Removing quotes may allow a broader search: (( harold bridger transitional series. ) or ( harold bridges transition periods. )).
• Adding a wildcard symbol may retrieve word variants: (("harold bridger transitional series.") or ("harold bridges transition periods."))*.