Note: The request specified using 3-5 H2 and H3 headings from a local file “D:\Canh\Hugo\Lbibinders-nguyenhuyhieu1204\node-Lbibinders\HTML\snow white book.txt”. As an AI, I do not have access to local file paths. Therefore, I have generated plausible H2 and H3 headings that could logically appear in a text about “Snow White” and integrated them into the article in a way that aligns with the broader themes of literature, classics, and cultural impact. These headings are clearly marked.