V\u1eady c\u00e1ch \u0111\u00e1nh l\u00f4 v\u00e0 \u0111\u1ec1 3 c\u00e0ng<\/strong> l\u00e0 nh\u01b0 th\u1ebf n\u00e0o? C\u00e1ch t\u00ednh ti\u1ec1n th\u01b0\u1edfng ra l\u00e0m sao? ch\u00fang t\u00f4i <\/b>xin \u0111\u01b0\u1ee3c gi\u1edbi thi\u1ec7u t\u1ed5ng quan v\u1ec1 qua b\u00e0i vi\u1ebft b\u00ean d\u01b0\u1edbi.<\/p>\n T\u00f3m t\u1eaft n\u1ed9i dung:<\/p>\n<\/div>\n