Article in English: Tap the Snapchat app, which resembles a white ghost on a yellow background. This will open the Snapchat camera if you're logged into Snapchat. If you aren't logged into Snapchat, you'll first need to tap LOG IN and enter your email address and password before proceeding. It's a pair of white boxes in the bottom-right corner of the screen. Doing so will open the Discover page, which is where you'll find Snapchat Stories from celebrities, news outlets, and time-sensitive events (e.g., protests or festivals). You'll most likely find a Story or two from people in your friends list on this page as well. Scroll down through the list of public Stories until you find one that you want to watch. Tap a Story which you want to view to open it. It will begin playing immediately. Tapping the left side of the screen will rewind to the previous Story segment, while tapping on the right will skip to the next Story segment.  If you finish the current Story, you'll usually automatically skip to the next available Story. Sometimes you'll receive an advertisement between Stories, or in the middle of them if you're watching a news segment. You can skip ads by tapping the right side of the screen.

Summary in Vietnamese:
Mở Snapchat. Nhấn vào thẻ "Discover" (Khám phá) với biểu tượng hai khung trắng ở góc dưới bên phải màn hình. Duyệt tìm tin công khai. Chọn Story. Điều hướng xuyên suốt Story.