Traveling to SE Asia; want to see wild orchids

[vapyle]

Hello all!

As you may have gathered from my title, I'm traveling to SE Asia. I'll be going in January, February and March of 2014 (so soon, ahg!). Thailand and Vietnam are on the itinerary; the rest is very open. Where might I go to see wild orchids while there? And what species should I look for? Or even, where do I start to learn more, haha?

A (very) cursory search of this board and the interwebs told me little. (Except that Phals grow wild there; I already knew that, and that's what made me explore this topic in the first place).

If anyone is interested, I can post additional info as I search more thoroughly.

Thanks in advance!
Tori