Where is the 'Find' feature? It worked

I can't seem to find anything with Spotlight using Snow Leopard. Since 1984 I have used the 'Find' feature with my Mac's and now nothing shows up when I use Spotlight. Even though I can physically search for the item and find it exactly the way I searched for it but it will not show up. What must I do? Things just don't work like they used to.

Harold