How to use Guide: Tool search for random combination of words every time. Default number of words to search is 7 - about 30 to 50 symbols.
Copy some text and paste in tool. Click on "Search Google" button at bottom 4-5 times and every time you will see list with websites where part of this text is present.
Unique Articles Unique Check - Guide in YouTube
If you want to achieve highest level of uniqueness, you can use our other seo tool Unique Articles. Unique Articles is online tool that use database with about one million english synonyms and replace words with their synonyms.