You may have luck, but then, you may not. The spells I've heard of to find lost items require descriptions. Can you at least sort of describe what you're looking for? If you can, you may be able to find it....try writing all you know about the item you're looking for on a piece of paper, and hold out the paper open on your hand. Think hard about what you're looking for, and ask the angels for guidance in looking for it. Crumple the paper swiftly, and keep the paper in your hand as you search. When you find the item (or stop looking) uncrumple the paper, and thank the angels for their help. If you can't find it, it could mean that you aren't supposed to.