当我打电话给Ú†时，为什么MySQL查询显示Ù†和Ú†的结果？

I have a database table with a column where I categorized Persian alphabetic letters to select with MySQL WHERE later. everything works fine for all letters, but I have a problem while selecting letter (چ) which is stored as (Ù†) in database and (ن) which is stored as (Ú†). I have a database table with a column where I