Perhaps you should try some spelling variations:
transitional periods » transition periods, transition period, transition series
bridge transitional » bridger transitional, pre transitional, beveridge transition
transitional period » transition period, transition periods
harold bridge » harold bridger, harold bradley

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: (( harold bridge transitional periods. ) OR ( harold bridge transitional period. ))~.
• Adding a wildcard symbol may retrieve word variants: (( harold bridge transitional periods. ) or ( harold bridge transitional period. ))*.