First, read the English article below.

You win a soccer match by scoring more goals than the opponent scores. A goal is scored when the whole ball passes the opponent’s goal line within the net area.  Goalies, when in their own penalty area, are the only players on the field (also called a pitch) who can use their arms or hands. All other players may use any part of their bodies except their arms and hands. A regulation game (also called a match) is typically 90 minutes long, made up of 2 halves of 45 minutes each. There are 11 total players (per team) on the field to start the game. Although the positions can be rearranged however the coach sees fit, there are usually 4 defenders, 4 midfielders, 2 strikers, and 1 goalie.  Defenders usually stay behind the midfield line in an effort to help prevent the other team from scoring. They need to make good outlet (clearing) passes and are usually bigger physically than other players. Midfielders do the most running, as they play a combination of defense and offense. They usually orchestrate the attack and need to be good at holding onto the ball and passing. Forwards/strikers get the most cracks at shooting the ball. They need to be quick, agile, and able to shoot with power and accuracy within seconds. They are often the fastest players on the field. The goalie protects the 18-yard penalty area and is the only player who can use their hands (but only in their own penalty area). The goalie has to be agile, flexible, quick to anticipate, and good at communication. At the time of kickoff, each team's players need to be entirely on their own half of the field and the opposition must not be within the center circle as the 10-yard mandatory distance on a restart. Once the whistle has blown and the ball is kicked, the laws allow it to go backwards or forwards , the players can move freely into both halves of play. One team starts the game by winning the coin toss to choose a side, the opposite team gets to kick off. Teams change sides at halftime and the team who did not kick off does so in the 2nd half.... 

Now, please write a short abstract for it in Vietnamese. Abstract:
Hiểu mục tiêu của trò chơi. Nhận biết vị trí trong bóng đá. Lưu ý rằng trận đấu và hiệp hai được bắt đầu từ những cú phát bóng. Học để biết khi nào thì được ném biên và ném biên thế nào cho đúng. Nhận biết sự khác biệt giữa phạt góc và phát bóng lên. Nhận biết khi nào thì một cầu thủ rơi vào tình thế việt vị. Nhận biết sự khác biệt giữa quả phạt trực tiếp và gián tiếp. Ý thức được rằng phạm lỗi trong vòng cấm địa sẽ bị thổi phạt đền. Hiểu những điểm cơ bản liên quan đến thẻ vàng. Hiểu những điểm cơ bản về thẻ đỏ.