The Vietnamese phrase "ngành ngọn" refers to something that is very detailed, covering all aspects or specifics of a subject. It’s often used to describe explanations, discussions, or analyses that delve deeply into a topic, exploring every facet and nuance.
You can use "ngành ngọn" when you want to emphasize that something is thorough or comprehensive. It’s often used in academic, professional, or technical contexts where in-depth understanding is required.
In more advanced contexts, "ngành ngọn" can be used to describe research papers, reports, or presentations that are not only informative but also meticulously crafted to cover all possible angles of a topic.