\u0110\u1ed1i v\u1edbi nh\u1eefng ng\u01b0\u1eddi kh\u00f4ng th\u01b0\u1eddng xuy\u00ean ch\u01a1i l\u00f4 \u0111\u1ec1 th\u00ec thu\u1eadt ng\u1eef l\u00f4 b\u1ea1ch th\u1ee7 hay b\u1ea1ch th\u1ee7 l\u00f4 c\u00f2n kh\u00e1 m\u1edbi l\u1ea1. V\u1eady l\u00f4 b\u1ea1ch th\u1ee7 l\u00e0 g\u00ec? C\u00f3 nh\u1eefng b\u00ed k\u00edp, c\u00e1ch b\u1eaft l\u00f4 b\u1ea1ch th\u1ee7 n\u00e0o \u0111\u1ec3 c\u00f3 th\u1ec3 mang l\u1ea1i chi\u1ebfn th\u1eafng cho ng\u01b0\u1eddi ch\u01a1i? H\u00e3y c\u00f9ng c\u00e1c chuy\u00ean gia website c\u1ee7a ch\u00fang t\u00f4i c\u1ee7a ch\u00fang t\u00f4i t\u00ecm hi\u1ec3u trong b\u00e0i vi\u1ebft d\u01b0\u1edbi \u0111\u00e2y nh\u00e9.<\/p>\n
L\u00f4 b\u1ea1ch th\u1ee7 l\u00e0 g\u00ec?<\/strong><\/h2>\nL\u00f4 b\u1ea1ch th\u1ee7<\/strong> hay c\u00f2n g\u1ecdi l\u00e0 \u0111\u1ed9c th\u1ee7 l\u00f4 l\u00e0 m\u1ed9t thu\u1eadt ng\u1eef l\u01b0u truy\u1ec1n t\u1eeb xa x\u01b0a \u0111\u1ec3 mi\u00eau t\u1ea3 v\u1ec1 tr\u00f2 ch\u01a1i l\u00f4 \u0111\u1ec1. \u0110\u00e2y l\u00e0 tr\u00f2 ch\u01a1i kh\u00f4ng ch\u1ec9 s\u1eed d\u1ee5ng \u0111\u1ebfn s\u1ef1 may m\u1eafn m\u00e0 n\u00f3 c\u00f2n \u0111\u00f2i h\u1ecfi ng\u01b0\u1eddi ch\u01a1i ph\u1ea3i c\u00f3 c\u00e1c k\u1ef9 n\u0103ng c\u0169ng nh\u01b0 kinh nghi\u1ec7m \u0111\u1ec3 ph\u00e1n \u0111o\u00e1n v\u00e0 \u0111\u01b0a ra \u0111\u01b0\u1ee3c s\u1ed1 l\u00f4 \u0111\u1eb9p nh\u1ea5t v\u00e0 ch\u01a1i 1 l\u1ea7n duy nh\u1ea5t.<\/p>\nC\u00f3 th\u1ec3 hi\u1ec3u c\u00e1ch ch\u01a1i l\u00f4 b\u1ea1ch th\u1ee7 l\u00e0 ng\u01b0\u1eddi ch\u01a1i ch\u1ecdn 1 con duy nh\u1ea5t m\u00e0 b\u1ea3n th\u00e2n ng\u01b0\u1eddi \u0111\u00f3 cho r\u1eb1ng s\u1ebd mang l\u1ea1i chi\u1ebfn th\u1eafng cho b\u1ea3n th\u00e2n v\u00e0 ch\u01a1i h\u1ebft trong 1 v\u00e1n. V\u1edbi c\u00e1ch ch\u01a1i n\u00e0y ng\u01b0\u1eddi ch\u01a1i s\u1ebd thu v\u1ec1 \u0111\u01b0\u1ee3c s\u1ed1 ti\u1ec1n r\u1ea5t l\u1edbn n\u1ebfu th\u1eafng. Do ch\u1ec9 ch\u01a1i 1 l\u1ea7n v\u00e0 1 con l\u00f4 duy nh\u1ea5t n\u00ean \u0111\u00f2i h\u1ecfi ng\u01b0\u1eddi ch\u01a1i ph\u1ea3i c\u00f3 kh\u1ea3 n\u0103ng ph\u00e1n \u0111o\u00e1n t\u1ed1t, nhi\u1ec1u kinh nghi\u1ec7m \u0111\u1ec3 \u0111\u01b0a ra \u0111\u01b0\u1ee3c con l\u00f4 chu\u1ea9n x\u00e1c.<\/p>\n
C\u00e1ch b\u1eaft l\u00f4 b\u1ea1ch th\u1ee7<\/strong><\/h2>\nL\u00f4 b\u1ea1ch th\u1ee7 mang l\u1ea1i k\u1ebft qu\u1ea3 th\u1eafng l\u1edbn nh\u01b0ng x\u00e1c su\u1ea5t chi\u1ebfn th\u1eafng r\u1ea5t nh\u1ecf. V\u00ec v\u1eady \u0111\u1ec3 \u0111\u01b0a ra \u0111\u01b0\u1ee3c b\u1ea1ch th\u1ee7 l\u00f4 \u0111\u1eb9p nh\u1ea5t ng\u01b0\u1eddi ch\u01a1i c\u1ea7n ph\u1ea3i bi\u1ebft t\u00ednh to\u00e1n logic. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 c\u00e1ch b\u1eaft l\u00f4 b\u1ea1ch th\u1ee7<\/strong> chu\u1ea9n ng\u01b0\u1eddi ch\u01a1i c\u00f3 th\u1ec3 tham kh\u1ea3o.<\/p>\n\n
C\u00f3 th\u1ec3 hi\u1ec3u c\u00e1ch ch\u01a1i l\u00f4 b\u1ea1ch th\u1ee7 l\u00e0 ng\u01b0\u1eddi ch\u01a1i ch\u1ecdn 1 con duy nh\u1ea5t m\u00e0 b\u1ea3n th\u00e2n ng\u01b0\u1eddi \u0111\u00f3 cho r\u1eb1ng s\u1ebd mang l\u1ea1i chi\u1ebfn th\u1eafng cho b\u1ea3n th\u00e2n v\u00e0 ch\u01a1i h\u1ebft trong 1 v\u00e1n. V\u1edbi c\u00e1ch ch\u01a1i n\u00e0y ng\u01b0\u1eddi ch\u01a1i s\u1ebd thu v\u1ec1 \u0111\u01b0\u1ee3c s\u1ed1 ti\u1ec1n r\u1ea5t l\u1edbn n\u1ebfu th\u1eafng. Do ch\u1ec9 ch\u01a1i 1 l\u1ea7n v\u00e0 1 con l\u00f4 duy nh\u1ea5t n\u00ean \u0111\u00f2i h\u1ecfi ng\u01b0\u1eddi ch\u01a1i ph\u1ea3i c\u00f3 kh\u1ea3 n\u0103ng ph\u00e1n \u0111o\u00e1n t\u1ed1t, nhi\u1ec1u kinh nghi\u1ec7m \u0111\u1ec3 \u0111\u01b0a ra \u0111\u01b0\u1ee3c con l\u00f4 chu\u1ea9n x\u00e1c.<\/p>\n