Before I post a question, I always try to see if it has been previously posted. But for some questions with mostly "math symbols" and few words, I find it difficult to search effectively. For example, if I tried to search MSE for
"Show that $\int_0^\infty \frac{\log x}{1+x^2}dx=0$",
what should I type into the search bar? Is there a way to search with LaTeX, and if not, why not? Also, I am not sure how to tag this question. Thanks!