>co`n To^?ng Bi' thu+ DDo^~ Mu+o+`i thi` 4 chu+~: "Quo^'c phi da^n cu+o+`ng". Ca'c ba'c o+i, la`m o+n coi la.i xem la` chu+~ "phi" hay chu+~ mo^ va^.y\. Ca'i chu+~ na`y quan tro.ng, sai 1 ly ddi 1 da(.m ma^'t\. Tie^'n.