Emacs docs aren't perfect but they are a major, major strength of it and I wish so much other software would learn from it. The devs are really responsive too - good guys!
Please, try to get into the habit of not only sharing the keystrokes but also commands they bind to. With all different Emacs "distros" popping up, it's hard to track the bindings. "Is it in vanilla, Doom or Spacemacs?..."
My hope is for a convention to emerge where the proper etiquette of Emacs pedagogy would be always mentioning the command.
Also, I think you meant to say C-h r s <search_term>, where <s> binds to Info-search
