You"ll have to click on the editor with snippets, select them all and copy them that way.
Now open VSCode and open command palette with
Ctrl + Shift + P.
Search for "Snippets: Configure User Snippets"
Select snippet file for desired language (if desired language is not on the list either download extension for that language or place it in global snippet file)
After you opened snippet file, just delete everything and paste your snippets.