Change your language to Japanese https://id.atlassian.com/manage-profile/account-preferences
When you want to type コメント (meaning "comment"), the keystrokes would be komento with Japanese IME
Notice the input becomes ｋおｍえｎｔお
Users can input any characters according to their language.
Users cannot properly input the multibyte characters.
Copy the query and paste it to the input field.