Thank you for your comment and I'm sorry if it's not clear enough. Assuming in a folder, for each word document, we have bunch of lines, tables, and paragraphs. But there are 4 identical lines which are the same in all word documents. They are:" Hello world", "goodby my life", ”im an electrical engineering major", "we are the best"

Now I want to keep everything between "Hello world" and "goodby my life"
Also i want to keep everything between "im an electrical engineering major " and "we are the best"
I don't want to see the rest of lines and data in the page.