Count number of rows use mysql like condition - mysql

Question

I have a table that contain list of book. I want to count the number of row with "mysql php" in it.
If I use regular like (use the code below), it only count the row with 'mysql php'.
SELECT 'mysql php' as searched_word,
count(case when book_list like '%mysql php%' then 1 else 0 end) AS number_of_occurrences
FROM book_list
What I want is, it also count the row with "php mysql" value, but I don't have idea how to do it.
This is the table:
+------------------------+
| book_list |
+------------------------+
| mysql php for dummies |
+------------------------+
| learn php mysql |
+------------------------+
| mysql php for students |
+------------------------+
| mysql database |
+------------------------+
my expected result:
+---------------+-----------------------+
| searched_word | number_of_occurrences |
+---------------+-----------------------+
| mysql php | 3 |
+---------------+-----------------------+

Answer 1

Make the condition an or, and use sum() (not count()):
select
'mysql php' as searched_word,
sum(book_list like '%mysql php%' or book_list like '%php mysql%') AS number_of_occurrences
from book_list
Note the way MySQL allows briefer code to count conditions, because 'true' is '1' and 'false' is '0'.
If you wanted to count rows that had both terms somewhere, eg "learn php and mysql", use this:
sum(book_list like '%php%' and book_list like '%mysql%')

Answer 2

WITH
-- parse searching criteria to separate tokens (delimiter - space), remove duplicates
cte1 AS (
SELECT DISTINCT token
FROM JSON_TABLE( CONCAT('["', REPLACE(#criteria, ' ', '","'), '"]'),
"$[*]" COLUMNS( token VARCHAR(254) PATH "$" )
) AS jsontable
),
-- select books which' title contains ALL tokens as complete words
-- words delimiter - space
-- commas, dots and another punctuation is NOT removed
cte2 AS (
SELECT book_list.book_list
FROM book_list
JOIN cte1 ON LOCATE(cte1.token, REPLACE(book_list.book_list, ' ', CHAR(0)))
GROUP BY book_list.book_list
HAVING COUNT(*) = ( SELECT COUNT(*)
FROM cte1 )
)
-- count the amount of matched titles
SELECT #criteria searched_word, COUNT(*) number_of_occurrences
FROM cte2;
fiddle
PS. Needed MySQL 8.0.4 or newer.