It starts by filling out the “At least one of the following expressions” field with the keywords that you’d like to monitor. Each alert can contain up to 5 keywords. Most of the time, this is the only field you’ll need to fill in to get your relevant mentions. But if you’d like to refine your search even more, you can use the “And all of the following expressions (in the same mention)” field under “Advanced settings” to find mentions containing all of several keywords.
You can also use the “And none of the following words” section to receive mentions that do not contain a specific word.