Understanding how to play flush and straight in poker is extremely important as the player needs to play a great deal to win. When playing flush, the player has to make a hand of five cards of the same suit, e.g., 5, 8, 10, Queen, King of a suit. The way to play flush is to pay attention to the situations when a player has the possibility to maximize his win to play more effectively. On the other hand, in a straight, the player needs to assemble five cards in sequences such as 4, 5, 6, 7, 8 to make a strong straight that can win. To master how to play flush and straight, it is important to practice and have a good understanding and proficiency in the basic principles. Therefore, the way one plays how to play flush is controlled, and the player knows when to bluff and when to invoke the appropriate strategy to win big at poker in Vietnam.