Finding where something is coded

How do you navigate a large code base?

A technique I use is to observe some language in the user interface of a product and then use the global search feature of the editor I am using to find the code.

Like all skills this needs to be learned.

For me it’s so automatic I take it for granted but I observe a lot of graduates have never worked on large code bases of code written by other people so this technique is not something they know off the bat.