Looks like there is now a search option on the landing page.
Offer Period. This offer commences at 10:00 (AEST) on 4 May 2020 and ends at 23:59 (AEST) on 14 May 2020 (“Offer Period”). eBay reserves the right to cancel the offer at any time.
Conditions. The offer entitles you to 10% off the purchase price (excluding postage costs) on all Eligible Items listed on www.ebay.com.au when you spend $100 or more in one transaction during the Offer Period, up to a maximum discount of $500 per transaction. Multiple items may be purchased in five transactions (up to a maximum of 10 items per transaction). All monetary amounts specified in these terms and conditions are in Australian dollars (AUD).