I have very good content writer who understand that unique content is very important for search engine rankings and she knows how to rewrite and make an articles unique.
But, recently I have started a new site and given her few articles to rewrite and when I checked them on copy scape I found that all the articles articles are at least 32% copied.
After that I Have compared the rewrite copy with the original articles and I found that my content writer is still doing the good job but copyscape still tracked the source of the original article.
I have seen very surprising result like "a computer operator" (copied), there must be many sites who have used the phrase "a computer operator" and its only 3 words but still copyscape marked it as RED.
Long time ago I have read somewhere that if you had 12 words common in a phrase then only it will be considered as a duplicate content and I have given the same guideline to my content writers but I guess it is the time to change it now.
If possible I would also like the experts like tedster & todd malicoat check the copyscape result.
Also, let me know if you guys want to get the link of my page to check it by yourself on copyscape.
So my main questions are:
Why copyscape is considering only 3 word pharse as duplicate?
Why copyscape has shown only that page from which my content writer took the article and ignored the other pages on the web which have the same phrase?
What are the new guidelines that now we all need to provide to our content writers?