<http://schema.org/query-input>
"required name=search_term"^^<http://www.w3.org/2001/XMLSchema#string>
<http://us.24h.com.vn/giao-duc-du-hoc/bo-gd-dt-se-thanh-tra-dot-xuat-thi-tot-nghiep-thpt-c216a537082.html>