The Vietnamese phrase "nới tay" can be translated as "relax one's severity" or "ease up." It is often used when someone is being too strict or rigid and needs to lighten up a bit. This phrase can apply to various situations, such as parenting, teaching, or even in managing a team at work.
While "nới tay" primarily means to relax one's severity, it can also imply being more forgiving or understanding in various situations.