The articles used to show up more prominently in my Google searches, but I just tried a few different searches and had a more difficult time getting a result that would take me to what I would consider an actual knowledge base article.
This is an an example of one: Restore your iPhone, iPad, or iPod touch from a backup
If you look at the URL of that page, the file name (or whatever you call the last section of the URL) is HT204184. That’s an indication that it’s a knowledge base article. Many of my more experienced AppleCare colleagues were able to rattle off those six-digit numbers from memory when asked for help with certain common problems.