If you enclose the whole search string in quotes, Google will give you only those results which have that exact string (zero, if you’re wondering). For example, a search on “green tomato recipes Mississippi cookbook” will bring up about 921,000 results, each of which will have some or all of those keywords. The combine operator is the comma, the “,” character. By combining terms, you can tell Google that you have several related concepts that you want to consider while searching.
