How to Search Deleted Documents

In script, doc.IsDeleted will get the deleted document. However, I wonder how to use formula to do a db.Search to find all the deleted documents. I know I can create a Trash view and find the documents there, but is it possible to search the database to find them? In short, is there a corresponding formula for doc.IsDeleted so that I can do a db search?

Thanks in advance for your help.