On Google the first few answers are usually from stackoverflow.com, blogs or forums. But there are times when even Googling doesn't help.
If the code or project you are dealing with is open-source. A great place to look for and get answers is the 'Issues' section on Github.
In my case, I was wondering why mirage in ember.js tutorial wasn't working well for me. All I had to do was go to Ember.js on Github and navigate to Issues tab. Then search for the keyword 'tutorial'
Booyah! I found my answer instantly.
P.S. If you don't find existing questions, just open a new issue and you will get much better answers as it comes from the creators.