/vʌɪs ˈtræfɪk/ – Phrase
Definition: buôn bán tệ nạn xã hội (gái điếm, văn hóa phẩm khiêu dâm,…).
A more thorough explanation: “Vice traffic” refers to the illegal trade or trafficking of goods or services that are considered vices, such as drugs, weapons, or human beings for purposes of exploitation.
Example: John was charged with driving under the influence of alcohol, a violation of the law pertaining to vice traffic.