Thank you Sreelakshmi for your fast reply,
If we can get the Searchterms by using the Search Query Performance Report, we would be able to check each term with our own Keyword list. If the word isn´t matching, we could potentially add the searchterm as a negative Keyword, so it will be excluded next time.
That would actually solve my Question.
I thing I am able to create something out of it.
Thank you for your time and guidance.