SELECT *
FROM freelook
WHERE done_type IN ('14','27','28')

...
WHERE
    done_type = '14'
    OR done_type LIKE '14,%'
    OR done_type LIKE '%,14'
    OR done_type LIKE '%,14,%'

SELECT *
FROM freelook
WHERE done_type LiKE '%14%'
OR done_type LiKE '%27%'
OR done_type LiKE '%28%'

SELECT *
FROM freelook
WHERE REGEXP_LIKE(done_type, '[^14,|,14,|,14$|^27,|,27,|,27$|^28,|,28,|,28$|]')

SELECT *
FROM freelook
WHERE REGEXP_LIKE(done_type, '^14,27,28$')

WITH tokens as (
SELECT distinct id, token
FROM
(SELECT
id,
SUBSTR (csv,
  INSTR (csv, ',', 1, LEVEL  ) + 1,
  INSTR (csv, ',', 1, LEVEL+1) - INSTR (csv, ',', 1, LEVEL) -1
  ) AS token
FROM (
  SELECT  id, ','||trim(done_type||',') csv FROM freelook)
  CONNECT BY LEVEL <= LENGTH(csv)-LENGTH(REPLACE(csv,',',''))+1)
  WHERE token is not NULL)

SELECT id FROM tokens
WHERE token in ('14','27','28')
ORDER BY id, token