Perhaps you should try some spelling variations:
"harold bridger traditional societies." » "harold bridger transitional societies.", "harold drives traditional societies.", "harold gender traditional societies.", "harold bradley traditional societies."
"harold bridges transition periods." » "harold bridger transitional periods.", "harold beveridge transition periods.", "harold bridge truncation 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 traditional societies.") or ("harold bridges transition periods."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("harold bridger traditional societies.") OR ("harold bridges transition periods."))*.
• Removing quotes may allow a broader search: (( harold bridger traditional societies. ) or ( harold bridges transition periods. ))*.