\u0110\u1ea1i s\u1ed1 – Ch\u01b0\u01a1ng 1 – B\u00e0i 5: \u0110\u01b0\u1eddng ti\u1ec7m c\u1eadn c\u1ee7a \u0111\u1ed3 th\u1ecb h\u00e0m s\u1ed1<\/a><\/blockquote><\/iframe>