Push your tongue against the top of your mouth and say 'ung', it's usually close enough (also holds for the common vietnamese name of Nguyen)
Specifically, it's the velar nasal phonome:
https://en.wikipedia.org/wiki/Velar_nasal
Push your tongue against the top of your mouth and say 'ung', it's usually close enough (also holds for the common vietnamese name of Nguyen)
Specifically, it's the velar nasal phonome:
https://en.wikipedia.org/wiki/Velar_nasal