KH%25C3%2594NG_SAY_KH%25C3%2594NG_V%25E1%25BB%2580_%25E2%2580%25A2_T%25E1%25BA%25ADp_1_%257C_Ra_Su%25E1%25BB%2591i_N%25C6%25B0%25E1%25BB%259Bng_Th%25E1%25BB%258Bt