Totally agree. I posted the comment just summarizing the article and then tried it (order of operations, I know) and I could not get relevant results for the life of me. I tried queries and simple phrases and everything was unrelated to what I was looking for.
Not sure if the terms chosen were dumb luck or what, but the article may need to provide some instructions if it was so good for the author. It sucks because many people want a search engine that worked like Google from 10-20 years ago.