array ('hello world', 'foo', 'bar') -- terms here have only letters and one space at most

CREATE OR REPLACE FUNCTION my_stupid_query(q text)
RETURNS text[] AS $$

  SELECT ARRAY(
    SELECT regexp_replace(t, '[^[:alpha:]]', '_', 'g')
    FROM unnest(string_to_array(q, ' ')) AS q(t)
  );

$$ LANGUAGE sql
IMMUTABLE;

SELECT word
FROM (VALUES (ARRAY['hello world', 'foo', 'bar'])) AS t1(x)
CROSS JOIN (VALUES ('foo hello-world helloXworld') ) AS query(q)
CROSS JOIN unnest(x) AS t2(word)
WHERE NOT word LIKE ANY(my_stupid_query(q));

 word
------
 bar
(1 row)