syntax error: select * from sanpham where (idDM = Hang or idDM in (select idDM from danhmuc where cap1 = Hang) or idDM in (select idDM from danhmuc where dmCha = Hang) or idDM in (select idDM from danhmuc where dmCha in (select idDM from danhmuc where cap1 = Hang))) or (idDM2 = Hang or idDM2 in (select idDM from danhmuc where cap1 = Hang) or idDM2 in (select idDM from danhmuc where dmCha = Hang) or idDM2 in (select idDM from danhmuc where dmCha in (select idDM from danhmuc where cap1 = Hang))) order by capNhat DESC, vitri, idSP DESC