We can only make it difficult by disabling right click and copy pasting and leaving only harder options. Like saving the entire page or viewing page source and then finding the content to be copied from the pool of code, which will be difficult and most people will leave there attempt to copy and will search for some other sites for easy copying. The good thing is that most of the people doesn't know these methods and they will think there is no way to copy content as they see right click or copying is not working.