I make seo blog, help webmaster have good traffic and backlinks with good tips Please review and comment it, my theme, my ads place Godd or bad? My seo blog: http://topseopro.blogspot.com
I would say change the last bottom color. When you go pass the last adsense on the content and it's just a big white space that you can scroll down, change that color from white to something else. Move the labels area to the left to make scroll down less.
I'm not sure if you meant for the Vietnamese text to be there, but if so it seems like a decent blog.
The blog looks nice, you should consider getting your own domain name, there is too much negative space at the bottom you should consider putting more content on the page.