It’s difficult, but it depends on your leader. Prepare your academic qualifications and papers. If you can’t write them yourself, you can hire a gunman to publish 2 to 3 papers in provincial publications, and prepare enough money. Build a relationship with the boss and ask him to take saunas, KTVs, travel, and eat out in restaurants.
After all this is done, your higher vocational job is set! You should also find out the proportion of higher vocational colleges in your school, how many people have a better relationship with the principal than you, whether they compete with you, etc.