How can I make non-english snippet? (e.g use Korean language in snippet prefix)

in my latex.json file

{
    "LaTeX":{
    "prefix":"라텍",
    "body": ["\\LaTeX"],
    "description": "korean"
    },
    "LaTeX2":{
        "prefix":"latex",
        "body": ["\\LaTeX"],
        "description": "english"
        }
}

second snippet "Latex2" go well, but first snippet don't activate.

How can I make non-english snippet prefix in vscode?