Perhaps you should try some spelling variations:
transitionalal series » transitional series, transition series, transitions series
bridger transitional » der transitional, gissel transitional, order transitions
transitional period » transition period, transition periods
harold bridger » harold bradley

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 transitionalal series. ) or ( harold bridger transitional period. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( harold bridger transitionalal series. ) OR ( harold bridger transitional period. )).
• Adding a wildcard symbol may retrieve word variants: (( harold bridger transitionalal series. ) or ( harold bridger transitional period. ))*.