How to write a query | cakephp 3.x

Please help!

How to write a query to the database according to the conventions cakephp 3.x

SELECT * FROM keywords
WHERE (kw LIKE %{$word_1}% AND kw LIKE %{$word_2}% AND kw LIKE %{$word_3}%)
 OR (kw LIKE %{$word_4}% AND kw LIKE %{$word_5}% AND kw LIKE %{$word_6}%)
 NOT (kw LIKE %{$word_7}% AND kw LIKE %{$word_8}% AND kw LIKE %{$word_9}%)
ORDER BY frequency DESC;

Important! Any variable ($word_1 - $word_9) can be NULL

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