So long as you are the original writer of that material and your content was posted BEFORE the "copier's" materials were, Google will see this and give you credit for the original materials.
How can you insure this? Simply register for Google Analytics and submit your website. You may need to upload a file, confirming you own the site - and then you will submit your site map inside Google Analytics. Let Google know that your content changes every 24 hours and you will always stay 1 step ahead of content duplicators.