Here's the deal: I have found a nice search phrase on my niche. Good monthly search volume and not so much competition. I'm now setting a website (blog) around it and writing my first article (or blog post) there. I want to target this search phrase in my article. I want Google to see that this article is very related to this search phrase. Is there any recommendations how often the search phrase I'm targeting should appear in approx 500 words article? Does it help if I BOLD or underline it?