<http://schema.org/headline>
"C\u00E1ch t\u00EDnh ph\u1EE5 c\u1EA5p th\u00EAm cho qu\u00E2n nh\u00E2n k\u00E9o d\u00E0i th\u1EDDi gian ph\u1EE5c v\u1EE5 t\u1EA1i ng\u0169"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.baomoi.com/cach-tinh-phu-cap-them-cho-quan-nhan-keo-dai-thoi-gian-phuc-vu-tai-ngu/c/20502879.epi>