I think the search field is broken in Stack Overflow. I can't find questions for the keyword [selenium]. I tried both the "Questions" and "Unanswered" tabs.
Well, it's not. Behold:
Ensure that you have not added selenium to one of your ignored tags and asked the site to hide ignored tags. If you have, the search will appear to succeed and report the correct number of questions found, but you won't actually see any questions listed on the page! You can find these settings under the preferences tab in your user profile.
And if you're still having trouble, make sure that you've read the search tips page. It explains how searches work on Stack Overflow, including some advanced tips and tricks that you can use.
Right. Because there are no featured questions for the selenium tag. But it tells you that, in literally giant text on the page, and even suggests that you switch tabs to find the other questions. How in the world can you call that "unintuitive"?
It does! (See above for details.)
If all else fails and the StackOverflow hamsters are asleep at the wheel, ask Mr. Google. Check out the first returned result: