Our returned results will occasionally overlap, especially if something is plagiarized, as it will be found in many places online.
When calculating the overall similarity scores, we don't only look at the individual results, but rather the whole text coverage. For example, if there is 100 submitted words and 2 results, which each cover 50 words but overlap for 25 words, then 75/100 words are covered and the plagiarism score will be 75%.
When displaying the results, Copyleaks reports highlight according to the most severe level of plagiarism found on a section of text where identical text > minor changed text > paraphrased text.