All system finds (queries) are automatically saved to the /boot/home/queries folder. However, you’ve probably noticed that saved queries get really unintuitive names (until you rename them). But it’s easy to give your queries memorable names while you’re making them.
Begin a query, then check the More Options box and fill in the field with any name you like. Once you’re done, the query will appear in its folder with a name you can identify instantly. You can also use this dialog to search through the Trash.