Vietnam Labor Code 2019: Is a probationary agreement without a contract against the law? Published May 16, 2021 at 1366 × 911 in Vietnam Labor Code 2019: Is a probationary agreement without a contract against the law? Vietnam Labor Code 2019: Is a probationary agreement without a contract against the law? Vietnam Labor Code 2019: Is a probationary agreement without a contract against the law?