How to contain from dataTable from string?

thank you for your replay,
so.
I have a data table with a words that I saved before - then I have to go to anther application that has a number of check boxes withe words, check line by line if it contains the words found in the dataTable and contains, if in the same line we find the words in the dataTable, mark V in the check box Like the Img i post.

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