<http://schema.org/headline>
"Th\u1EE7 thu\u1EADt gi\u1EDBi h\u1EA1n t\u1ED1c \u0111\u1ED9 t\u1EA3i file trong IDM"^^<http://www.w3.org/2001/XMLSchema#string>
<https://it60s.org/thu-thuat-gioi-han-toc-tai-file-trong-idm.html>