Long tail keywords are three or four keywords that are specific to the thing what you are selling.

When a person is trying to find something on Google he doesn’t just input one word into the search, he enters a question or a specific phrase. And this is what long tail keywords are – specific phrases a person would enter into a Google search. So, if you use long tail keywords, it is more likely that a person with a specific interest would come to your website and buy your product or service.