When I type in the search text field, the results are for U.S.A.. In "advanced search" I attempted to alter this for results in Australia, to no avail. Thanks for any efforts to resolve this.

@chordato If you want to search for items listed in Australia, try starting your search on the Australian eBay site rather than here on the eBay dot com site. https://www.ebay.com.au/ From there you should be able to choose "Australia only" as your Item location when searching.