Search for a code from repositories containing specific files/packages

[dhavall08]

Not sure if it is an available feature but I'd like to search code with a specific pattern of the available repository.

Example: I want to search code for file upload to s3 in repositories where there is serverless.yml file exists; or where the package.json of the repository contains specific packages, because, in that way, I can get only those implemented code and not the library code or other doc files. If right now, I search "serverless s3.upload", it searches the word "serverless" which is not a necessary part of code for many examples.