He often used to refer to the first letter of each line that matches the words we want to or not. If not found, it may be the first two words. Until it finds a keyword to search.
He often uses the first letter of each line that corresponds to the word that we want to or not. If not found, you may see two first words until you find the word you want to search.
See how you can always use the first letter of each line corresponds to a word that we want to or not if it is not found, it may refer to two first word until you find the words you want to search for.