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