Perhaps you should try some spelling variations:
historical demography » historical geography, historical biogeography
oxford historical » oxford pictorial, foreword historical, informed historical
oxford physical » oxford poetical, foreword physical

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: (( oxford historical demography / oxford historical demography ) OR ( oxford physical geography / oxford physical geography )).
• Adding a wildcard symbol may retrieve word variants: (( oxford historical demography / oxford historical demography ) or ( oxford physical geography / oxford physical geography ))*.