Perhaps you should try some spelling variations:
"Oxford historical biogeography / Oxford historical biogeography" » "Oxford historical demography / Oxford historical demography"
"oxford historical monographs / oxford historical monographs" » "oxford historical photographs / oxford historical photographs", "oxford historical iconography / oxford historical iconography", "oxford historical topography / oxford historical topography", "oxford pictorial monographs / oxford pictorial monographs", "foreword historical monographs / foreword historical monographs", "informed historical monographs / informed historical monographs"
"Oxford historical geography / Oxford historical geography" » "Oxford physical geography / Oxford physical geography"

Try widening your search to All Fields.

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 monographs / oxford historical monographs") OR ((("Oxford historical biogeography / Oxford historical biogeography") OR ("Oxford historical geography / Oxford historical geography")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"oxford historical monographs / oxford historical monographs\") or (((\"Oxford historical biogeography / Oxford historical biogeography\") OR (\"Oxford historical geography / Oxford historical geography\"))))".
• Removing quotes may allow a broader search: (( oxford historical monographs / oxford historical monographs ) or ((( Oxford historical biogeography / Oxford historical biogeography ) OR ( Oxford historical geography / Oxford historical geography )))).
• Adding a wildcard symbol may retrieve word variants: (("oxford historical monographs / oxford historical monographs") or ((("Oxford historical biogeography / Oxford historical biogeography") OR ("Oxford historical geography / Oxford historical geography"))))*.