Let’s find the repeated phrases in the English words. The words come from https://github.com/dwyl/english-words/blob/master/words_alpha.txt.
The words list looks like this:
... aardvark aardvarks aardwolf ... To dig into the letters, I separate the letters by a space and insert a comma after the end of the words.
... a a r d v a r k, a a r d v a r k s, a a r d w o l f, .