Background
I am working on a project that has a very large source tree. Since the source tree is large, the 'find in files' functionality of Sublime Text 3 takes quite some time to complete its search. I know that the symbols for which I am searching will only occur in certain (perhaps multiple) subdirectories of this source tree.
Question
Is there a way to restrict the 'find in files' functionality of Sublime Text 3 to search multiple (but not all) subdirectories of a project source tree?