REPLACE (REPLACE (field_name, "what we are looking for," "replace first instance"), "something else we are looking for," "replace second instance")
REPLACE (REPLACE (ພາກສະ ຫນາມ ຊື່, "ສິ່ງທີ່ພວກເຮົາ ກໍາ ລັງຊອກຫາ," "ທົດແທນຕົວຢ່າງ ທໍາ ອິດ"), "ສິ່ງອື່ນທີ່ພວກເຮົາ ກໍາ ລັງຊອກຫາ," "ທົດແທນຕົວຢ່າງທີສອງ"))