Perhaps you should try some spelling variations:
"worlds pictorial photographs / worlds pictorial photographs" » "worlds historical photographs / worlds historical photographs", "worlds editorial photography / worlds editorial photography", "worlds historical photographic / worlds historical photographic", "world pictorial photographs / world pictorial photographs", "works pictorial photographs / works pictorial photographs", "birds pictorial photographs / birds pictorial photographs"
"oxford historical demography / oxford historical demography" » "oxford historical geography / oxford historical geography", "oxford historical biogeography / oxford historical biogeography", "foreword historical demography / foreword historical demography", "informed historical demography / informed historical demography", "forward historical demography / forward historical demography"
"oxford pictorial geography / oxford pictorial geography" » "oxford historical geography / oxford historical geography", "oxford electoral geography / oxford electoral geography", "oxford informal geography / oxford informal geography", "food pictorial geography / food pictorial geography", "world pictorial geography / world pictorial geography"

Try widening your search to All Fields.

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• If you are trying to use Boolean operators, they must be ALL CAPS: (((("oxford pictorial geography / oxford pictorial geography") OR ("oxford historical demography / oxford historical demography"))) OR ("worlds pictorial photographs / worlds pictorial photographs")).
• Removing quotes may allow a broader search: (((( oxford pictorial geography / oxford pictorial geography ) or ( oxford historical demography / oxford historical demography ))) or ( worlds pictorial photographs / worlds pictorial photographs )).
• Adding a wildcard symbol may retrieve word variants: (((("oxford pictorial geography / oxford pictorial geography") or ("oxford historical demography / oxford historical demography"))) or ("worlds pictorial photographs / worlds pictorial photographs"))*.