Related searches are a good source of long tail keywords for your website, because they show the intent of people searching for similar queries. (mangools.com)
I had great luck which just entering a two word keywords in the past and being more specific with long tail keywords will benefit in the long run. (nopassiveincome.com)
Your practice can gain an even greater advantage by creating a blog and blogging about topics that could come up in long tail search terms. (lifelearn.com)