There is one essential skill which goes unmentioned in every job posting that every developer needs to master. Being able to conduct research and educate yourself is a super competence which is a widely sought after skill.

With google you do have the knowledge of the world at your finger tips, but using it precisely needs to be learned. I will introduce to you a couple of google's functionalities:

Using quotes to force an exact-match search

AND operator will return results related to both search terms

OR operator will return results related to one of the search terms

- operator will exclude results that contain a term or phrase

* for a wildcard, which will be replaced by any word or phrase

search inside a certain website

search for a specific file type

search in a certain range of numbers