SQL la: SELECT * FROM TinTuc WHERE ( TieuDe LIKE '%so do%' OR TieuDeKhongDau LIKE '%so do%' OR NoiDung LIKE '%so do%' OR NoiDungKhongDau LIKE '%so do%' OR TuKhoa LIKE '%so do%' OR TrichDan LIKE '%so do%' ) AND (DanhMucTin <> 0) ORDER BY ID DESC SQLdemsoluong la: SELECT COUNT(ID) AS PageCount FROM TinTuc WHERE ( TieuDe LIKE '%so do%' OR TieuDeKhongDau LIKE '%so do%' OR NoiDung LIKE '%so do%' OR NoiDungKhongDau LIKE '%so do%' OR TuKhoa LIKE '%so do%' OR TrichDan LIKE '%so do%' ) AND (DanhMucTin <> 0)