/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: tvinguyen13 https://public.slidesharecdn.com/v2/images/profile-picture.png Không phải tôi không muốn giao lÆ°u, chỉ vì giao diện của tôi thá»±c sá»± chÆ°a được thân thiện It's not that I don't want to communicate, it's because my interface isn't very friendly.