Translation:They do not want celery on their noodles.
Seledri in Indonesia is a different species than the celery that we are accustomed to in the rest of the world.
In Indonesia the celery is very small. It is used for its flavor, in the way that westerners use celery salt.
You can buy "regular" celery in the supermarket, but it is expensive, because it is imported (usually from Australia).