Complex sentence: The King is assisted: in his work and duties by the Private Secretary to the King of Thailand and the Privy Council of Thailand, in his household by the Bureau of the Royal Household and his finances handled by the Crown Property Bureau.
Split into simpler sentences: The King is assisted: in his work and duties by the Private Secretary to the King of Thailand and the Privy Council of Thailand. In his household by the Bureau of the Royal Household and his finances handled by the Crown Property Bureau.