No; you’re using the syntax of database search (macro language, db.Search) as input to a full-text search (FTSearch), which uses a very different syntax. The full-text search syntax is documented in the user help (not the Designer help).
In this case, however, I think it’s better to forget about using db.Search or db.FTSearch. With the specific search you’re attempting, it will be more efficient to use NotesView.GetAllDocumentsByKey in a view that’s sorted by location.