What are the reasons for the victories of the Hussites over the armies of the Crusaders?

The Hussites at the time of the attack on them by the crusaders had the most advantageous social position. They secured broad support from the population of the country, which was in full agreement with their demands in relation to the government and the church. A plus to this superiority was the national ideological spirit, which was not easy to break for the less prepared crusaders in this regard.