Software is not so complicated that you have to Google search everything every time. If you are not internalizing new knowledge, you are performing poorly.
There is definitely a point in a framework with strong structure where it becomes easier to read the code than google the problem. But if you aren't working on a single codebase for a while you are definitely better off with google on your side.
Some frameworks are written in a way that makes reading the code a pain in the ass too, with generation, magic methods, annotations and other meta coding techniques that turn conventions into code. In those cases even if you have a really niche problem google may still be faster than delving into the dark depths of non-code.
What kind of software do you write? Software is one of the most unnecessary complex things humanity has invented.