So um a few days ago. I did an OSW where and what happened before jaune, Izuku and aether came to teyvat.
In those two chapter, I used Google translate. To translate the fishing techniques Issei used in the story
And after I went to Gemini and retranslated again after I uploaded the two chapters.
So the technique's name was translated from Sino-vietnamese to English.
The fishing techniques Issei used are from the Chinese animation show call fish it.
We usually translate Chinese to Sino-vietnamese, not vietnam