Ideally insert a single search term at a time. The search database is Google maps so search for terms you would expect to type directly into Google maps. Do not include any location terms.
Example of a good of search terms: restaurant, hotel, doctor, pharmacy
Example of bad of search terms: "restaurant near me" (as you location is unknown), "retail shops" (this is too vague a term for google maps), "barbers in New York" (do not include location terms).
Google search results often include categories adjacent to your search, e.g. "restaurant" might also capture some "cafe" or "bar" places, but you will get more results if you use them as separate search terms.