PlagiarismToday has a guide that you may find helpful when trying to have your copyrighted material taken down.
https://www.plagiarismtoday.com/stopping-internet-plagiarism/Stop Internet PlagiarismStopping Internet Plagiarism may seem to be a daunting challenge at first, however, the process is extremely simple and can be broken down into a series of steps.
Below are the six steps to detecting and stopping misuse of your content on the Web:
Below the guide steps there is a list of general copyright articles you might find helpful also.
FYI - I chased a SEO from host to host who copied my material till they gave up and wrote their own material so this does work without a lawyer if you are persistent. You just have to word your complaint properly.