Custom expression is not working properly

Hi, I'm trying to filter a question using specific keywords with a custom expression, as you can see below.

However, it seems that some keywords that are not included in the custom expression appear on the question, even though they shouldn't (cf: screenshot below).

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Is there something wrong with my custom expression ?

Thanks for your help !

Technical information :
Metabase version : v0.41.4
Database : Postgresql

Hi @moniqueb
The Custom Expressions where completely revamped in newer versions of Metabase.
It is difficult to see which query is being sent to the database, so have a look at the SQL or look in the database query log to better understand why the results are like that.