Got some articles written for cheap and figured I would do the editing myself. Going through the documents, there are some obvious parts that were copied from somewhere, but the papers pass a plagiarism test. So I kept editing and found a word that I wanted to lookup. When I copy and pasted it into google it said there was no match but I knew there should have been something. So I erased it and typed the word in by hand, and that caused the results to appear. I did this for several more basic words and the same thing happened. Something about the formatting of the article is preventing google from picking up the words and I suspect it prevents plagiarism checkers from picking up the plagiarized content. Does anyone know how to edit the documents so I can do a real plagiarism check?