The saying: "Buy in May and go away" certainly does not apply to the Malaysian stock market. Since September 2010 to the present day, the lowest point of the FBM KLCI is 1526.60. It was established on May 18, 2012. At the time of writing this post it is hovering at 1610 with an uptrend bias.
So the saying should be changed to: Buy in May and Hold all the way.