Exclude words: Add a ‘-,‘ so ‘-female vocalists’ to filter out music videos with female singers.Let’s add those keywords, and do a search on “an angel’s smile, rock, and roll, 1980’s”. And you think it probably came out in the 1980s because you remember your dad singing it in the car all the time back then. You know that the song you’re looking for is rock and roll. In our search for the angel’s smile song, let’s add some combined keywords that might help Google out. Searching for “green tomato recipes, Mississippi, cookbook” tells Google more precisely what you’re looking for and gets you better results. However, if you use “,” to combine your concepts, you can get a list of results that has connections to all three sets of concepts. 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.