1. Look at the top right of any page; you'll see advanced search there.
Unfortunately, it won't work right now, since we're on Level 1. When we get back to normal, then it will work again.
It helps you find someone here on DU.
I hope that helps.
I expect to pass through this world but once; any good thing therefore that I can do, or any kindness that I can show to any fellow creatures, let me do it now; let me not defer or neglect it, for I shall not pass this way again. Stephan Grellet