How do you search for related articles? I am a junior researcher.
Recently I was able to prove a result in Graph Theory. I wish to know whether this result is already known in the existing literature of Graph Theory. I am not an expert in searching articles. I used Google and browse through some of the articles in vain.

I shared my result with my advisor. However, since he is not an expert of this field, he couldn't answer to my query.

I was wondering how academic reasearchers tackle this kind of situations. How do you make a good search to find the articles as close to possible to a related work?
For physics, google scholar and Inspire prove to be the best option(Inspire also list the "cited by" section, where you can see where an idea in a paper was applied/extended, and is very useful from this point of view, since for most journals this section require a subscription). These two also includes new papers which in high energy physics appear first on arxiv. However, for other sciences, different search engines are expected.