A couple of questions that I have asked on this site have been marked duplicates and I have seen people attach the link of the previously asked question quickly (not just on mine, but on all other people's questions as well). I would like to know how they search for the question so quickly. Thanks!
P.S. So as no ironical situation is generated, I tried my best to search the site for questions that my question could possibly duplicate. I seriously hope my efforts brought me success, and if not, then my question will have a live example.
Edit: As shown be Arnaud Mortier, I was unsuccessful as we have a live example here. But partly because, the question whose duplicate is my question, happened to be on meta and my search was limited only to Math SE.