Have your examples included their source?  I bet not. They just inputted the text from the original work and pasted it for their own good.  I studied research subject and conducted a lot of thesis and with that, I learned plagiarism. I told at my post that I got that from google and look at the quotation marks (""). I used them with my statement. And using quotation marks means that I'm not the first one to say that thing and was from a source.