So How come

So how come 3 Billion Asians – Chinese, Indonesians, Cambodians, Vietnamese, Thais, Malaysians, Japanese, Laotians, etc, never heard of Jesus – the Savior of the world? If they did, how come Jesus never converted them into becoming a Christians? What happened to the power of God to spread the Word of God? Only the spiritually poor Filipinos living in morally backward Philippines heard the Word and got to become Christians since the 16th century.
1 Cor. 4:20 says: "for the kingdom of God is not in word but in power." The superstitious primitive who wrote those words must have been a real primitive.
Now, where in the bible, a book written by inspired Jewish authors of God, is the good word for the Filipino? Surely during biblical times, we were already existing on these “pearl of Orient” Asian country before Christianity arrived to transform it into the “Payatas of the Orient.” Poch Suzara