I have been bookmarking my searches in Yahoo! Japan Auctions, while making sure the results are displayed in such way to the most recently listed item is first, and the oldest - last. That way, I thought, I would never miss on an item. However, I've discovered that despite this technique I have been missing on some stuff. While tinkering with the options I found out that there's a checkbox called "新着", supposedly displays only the newly listed items. It's a separate function from the drop down list of the display order. Ticking it, while keeping the aforementioned display order of the items, results in a considerably different outcome for searches, even in the very first page.
I thought that ordering the results chronologically from new to old and browsing the first couple of pages would cover ALL new items, but apparently, I was wrong.
So, the question is: what does the "新着" checkbox does exactly, and what's the difference between ticking it or not? (in both cases, the order of display is the same - newest listing first)