What are keywords and phrases?

To attract the right visitors to your Web site, you need to use keyword phrases instead of just single keywords. This helps search engines match users to results that are more relevant to them. Just like a keyword is a single word used as a search query, a keyword phrase is two or more words typed as a search query.

For More Information Please Refer: https://www.dummies.com/web-design-development/search-engine-optimization/how-to-choose-effective-keyword-phrases-for-search-engines/