Ngh\u1ecb lu\u1eadn x\u00e3 h\u1ed9i v\u1ec1 v\u1ea5n \u0111\u1ec1 \u00f4 nhi\u1ec5m kh\u00f4ng kh\u00ed t\u1ea1i H\u00e0 N\u1ed9i<\/a><\/blockquote><\/iframe>