const fs = require('fs');
const html = fs.readFileSync('/home/x79/sisvietnamvn_01/BV_DHYD_HCM/Khoa Giải phẫu bệnh.html', 'utf8');

const h2s = html.match(/<h2[^>]*>([\s\S]*?)<\/h2>/gi);
console.log('H2s:', h2s ? h2s.map(h => h.replace(/<[^>]+>/g, '').trim()) : 'None');

const h3s = html.match(/<h3[^>]*>([\s\S]*?)<\/h3>/gi);
console.log('H3s:', h3s ? h3s.map(h => h.replace(/<[^>]+>/g, '').trim()) : 'None');