@Vân-Anh0 your listing seems to have a 28-night minimum stay.
When a listing has a minimum stay of 28 nights or more, the Airbnb system seems to categorize it as a "long-term stay only" listing.
Normally, when a guest is searching and has not yet chosen any dates, all listings will appear on the map.
For some reason, if your listing is a "long-term-stay only" listing, it will NOT appear if the guest has not chosen any dates.
The only way for your listing to appear, then, is for the guest to enter dates with at least 28 nights, AND if your listing is available during those exact dates.
It is not a recipe for getting a lot of views. You are all but invisible.
Is there a reason you only want long term stays?
The one piece of good news: when I put in a long term stay, and zoomed to your area, your seach ranking was not bad: #4 of 36.