I don't know if any victory conditions give you bonus points, but there are ways to increase your points if you are trying to 'milk' the score. Since the points are based on territory (primarily), happy people and content people, try to increase these. Territory is tricky, because you want as much territory as possible, without triggering a domination victory. Having your cities as happy (and as big) as possible will help.
My current game on Regent I'm up to 3800+ points in 1780 A.D, but I was going to win by culture very early. So I had to sell all my libraries, universities, and even my collesuems! I switched to communism, so my people will stay happy. Hopefully, Germany will catch up to my culture so it has at least half my culture, so I don't win when I hit 100,000 culture points.