<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.kilobooks.com/buoc-ngoat-trong-cach-mang-triet-hoc-macxit-va-y-nghia-cua-no-o-thoi-dai-ngay-nay-212034>