1. Fierce competition: In the South American Football Federation (CONMEBOL), Chilean football must compete with strong teams such as Argentina, Brazil and Uruguay, which makes it difficult for them to advance directly to the World Cup.
2. Lack of skills and tactics: The technical and tactical level of Chilean football is slightly lower than that of other strong South American football teams, so it is difficult to play an advantage in the tense qualifiers.
3. The pressure of World Cup trials: Chile may need to participate in the famous "play-offs" and is not qualified for direct promotion. In the tense competition, they are faced with great pressure and changing environment, which may affect them and the result of the competition.
In short, Chilean football has not won the World Cup because of the environment and competitiveness, as well as the limitations of the team's own technical and tactical level.