\u0110\u1ed1i v\u1edbi d\u00e2n ch\u01a1i l\u00f4 \u0111\u1ec1 th\u01b0\u1eddng xuy\u00ean v\u00e0 chuy\u00ean nghi\u1ec7p kh\u00f4ng c\u00f2n qu\u00e1 xa l\u1ea1 v\u1edbi nh\u1eefng thu\u1eadt ng\u1eef g\u1ecdi trong l\u00f4 \u0111\u1ec1. Tuy nhi\u00ean v\u1edbi nh\u1eefng ng\u01b0\u1eddi m\u1edbi ch\u01a1i hay \u0111ang c\u00f3 \u00fd \u0111\u1ecbnh tham gia th\u00ec vi\u1ec7c t\u00ecm hi\u1ec3u v\u1ec1 c\u1ea7u l\u00f4 \u0111\u1ec3 \u0103n b\u1ea1ch th\u1ee7<\/strong> l\u00e0 g\u00ec? V\u00e0 c\u00e1ch ch\u01a1i ra sao l\u1eddi nh\u1ea5t? lu\u00f4n l\u00e0 nh\u1eefng c\u00e2u h\u1ecfi c\u1ea7n \u0111\u01b0\u1ee3c gi\u1ea3i \u0111\u00e1p. Trong b\u00e0i vi\u1ebft n\u00e0y l\u00e0 to\u00e0n b\u1ed9 nh\u1eefng gi\u1ea3i \u0111\u00e1p cho s\u1ef1 th\u1eafc m\u1eafc, b\u0103n kho\u0103n c\u1ee7a b\u1ea1n, h\u00e3y c\u00f9ng tham kh\u1ea3o nh\u00e9.<\/em><\/p>\n Trong gi\u1edbi ch\u01a1i l\u00f4 \u0111\u1ec1 th\u00ec b\u1ea1ch th\u1ee7 l\u00f4 hay c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u0111\u1ed9c th\u1ee7 l\u00f4, l\u00e0 m\u1ed9t thu\u1eadt ng\u1eef \u0111\u01b0\u1ee3c l\u01b0u truy\u1ec1n t\u1eeb l\u00e2u. B\u1ea1ch th\u1ee7 l\u00e0 c\u00e1ch ch\u01a1i l\u00f4 \u0111\u1ec1 \u00edt v\u1ed1n m\u00e0 mang l\u1ea1i ngu\u1ed3n l\u1eddi cao, \u0111\u00f2i h\u1ecfi k\u1ef9 thu\u1eadt soi chuy\u00ean nghi\u1ec7p, uy\u00ean th\u00e2m, kinh nghi\u1ec7m c\u1ee7a c\u00e1c chuy\u00ean gia, ng\u01b0\u1eddi ch\u01a1i l\u00e2u n\u0103m.<\/p>\n C\u1ea7u l\u00f4 \u0111\u1ec1 \u0103n b\u1ea1ch th\u1ee7 nh\u1eb1m \u00e1m ch\u1ec9 t\u1edbi m\u1ed9t con s\u1ed1 may m\u1eafn l\u00e0 ch\u00eca kh\u00f3a \u0111\u1ec3 ng\u01b0\u1eddi ch\u01a1i c\u00f3 ngu\u1ed3n l\u1eddi nhi\u1ec1u nh\u1ea5t. V\u1edbi c\u00e1ch soi c\u1ea7u l\u00f4 \u0111\u1ec1 \u0111\u1ec3 \u0103n b\u1ea1ch th\u1ee7 c\u1ea7n \u0111\u00f2i h\u1ecfi s\u1ef1 chuy\u00ean nghi\u1ec7p v\u00e0 ki\u00ean tr\u00ec th\u00ec t\u1ef7 l\u1ec7 tr\u00fang \u0111\u1ec1 l\u00ean \u0111\u1ebfn 90%.<\/p>\n L\u00e0 c\u00e1ch ch\u01a1i kh\u00f4ng gi\u1ed1ng ch\u01a1i l\u00f4 th\u00f4ng th\u01b0\u1eddng, khi ch\u01a1i l\u00f4 b\u1ea1ch th\u1ee7 mang \u0111\u1ebfn cho ng\u01b0\u1eddi ch\u01a1i nh\u1eefng l\u1ee3i \u00edch:<\/p>\n \u2013 Ngu\u1ed3n v\u1ed1n ng\u01b0\u1eddi ch\u01a1i b\u1ecf ra \u00edt h\u01a1n, b\u1edfi khi ch\u01a1i l\u00f4 \u0111\u1ec3 \u0103n b\u1ea1ch th\u1ee7 ng\u01b0\u1eddi ch\u01a1i ch\u1ec9 c\u1ea7n \u0111\u1ea7u t\u01b0 v\u1ed1n ti\u1ec1n v\u00e0o 1 con duy nh\u1ea5t thay v\u00ec r\u1ea3i nhi\u1ec1u con s\u1ed1 nh\u01b0 ch\u01a1i l\u00f4 th\u01b0\u1eddng.<\/p>\n \u2013 T\u1ef7 l\u00ean ng\u01b0\u1eddi ch\u01a1i tr\u00fang th\u01b0\u1edfng cao. VD: soi c\u1ea7u KQXSMB m\u1ed7i ng\u00e0y c\u00f3 t\u1ed5ng 27 gi\u1ea3i d\u00e0n \u0111\u1ec1u, t\u1eeb \u0110B cho \u0111\u1ebfn gi\u1ea3i 7, nh\u01b0 v\u1eady t\u1ef7 l\u1ec7 ng\u01b0\u1eddi ch\u01a1i \u0103n l\u00f4 b\u1ea1ch th\u1ee7 s\u1ebd cao h\u01a1n khi ch\u01a1i l\u00f4 d\u00e0n th\u00f4ng th\u01b0\u1eddng ho\u1eb7c song th\u1ee7 l\u00f4.<\/p>\n V\u1edbi nh\u1eefng \u01b0u \u0111i\u1ec3m m\u00e0 ng\u01b0\u1eddi ch\u01a1i c\u00f3 \u0111\u01b0\u1ee3c th\u00ec ch\u01a1i l\u00f4 \u0111\u1ec3 \u0103n b\u1ea1ch th\u1ee7 c\u0169ng c\u00f3 nh\u1eefng ti\u1ec1m \u1ea9n nguy c\u01a1 v\u1ec1 r\u1ee7i ro kh\u00e1 cao. Khi soi c\u1ea7u l\u00f4 \u0103n b\u1ea1ch th\u1ee7 th\u00ec c\u1ea7n ng\u01b0\u1eddi ch\u01a1i c\u00f3 s\u1ef1 quy\u1ebft \u0111o\u00e1n, ki\u00ean tr\u00ec, \u0111\u00e2y ch\u00ednh l\u00e0 c\u00e1ch ch\u01a1i l\u00f4 \u0111\u1ec1 kh\u00f4ng d\u00e0nh cho nh\u1eefng ng\u01b0\u1eddi ch\u01a1i h\u01b0\u1edbng t\u1edbi s\u1ef1 an to\u00e0n, nh\u1eefng ng\u01b0\u1eddi \u01b0a chu\u1ed9ng ph\u01b0\u01a1ng ph\u00e1p ch\u01a1i l\u00f4 th\u00f4ng th\u01b0\u1eddng.<\/p>\nSoi c\u1ea7u l\u00f4 \u0111\u1ec3 \u0103n b\u1ea1ch th\u1ee7 ngh\u0129a l\u00e0 g\u00ec?<\/strong><\/h2>\n
Soi c\u1ea7u l\u00f4 \u0103n b\u1ea1ch th\u1ee7 ng\u01b0\u1eddi ch\u01a1i \u0111\u01b0\u1ee3c v\u00e0 m\u1ea5t g\u00ec?<\/strong><\/h2>\n
4 c\u00e1ch soi c\u1ea7u l\u00f4 \u0111\u1ec3 \u0103n b\u1ea1ch th\u1ee7 chu\u1ea9n, t\u1ed1i \u01b0u nh\u1ea5t cho ng\u01b0\u1eddi ch\u01a1i<\/strong><\/h2>\n