The Vietnamese phrase "nhân tiện" can be translated to "on the same occasion" or "by the way" in English. It is used to indicate that something is being done at the same time as another action, often to add an additional request or suggestion.
In more advanced contexts, "nhân tiện" can also be used to introduce a new topic that is related to the previous discussion or to connect ideas smoothly.
"Nhân tiện" is a versatile phrase that helps to make conversations smoother by linking actions or requests.