The tool can be more difficult than it seems. For instance, there are different types of searches. For instance, in one type, the phrase "Jobs in NYC" might be referring to a combination of smaller phrases using its words, not what you might think it means. In other words, both "babysitting jobs in NYC" and "Construction Jobs in NYC" would be included.
Also, you need to know the difference between long and short phrases in relation to marketing. Note, the longer phrases are better for getting a buyer, while the shorter ones would be better for building a list.