I believe you're asking, "What is lá sâm Ngọc Linh in English?"
The answer is Ngọc Linh ginseng. More specifically, it's sometimes referred to as Ngọc Linh Panax ginseng, as it's a species of Panax ginseng. This clarifies that it's a type of ginseng, specifically from the Ngọc Linh mountain range in Vietnam. Simply "Ngọc Linh ginseng" is generally sufficient and easily understood by those familiar with ginseng.