Ps: Not entirely sure the Tibetan is going to work here...
Edit: OK it didn't like the stacks.
can't work out how to fix that.
The first one is obvious - the lower syllable belongs under the previous one.
For the second, they both belong under, but they radically change the top syllable, and bottom one. Bottom syllable becomes an under curly thingie (-ya). But then people with correct knowledge of Tibetan will understand it.
So... how do I get the stacking right? Use Tibetan Wylie keyboard input?
I just copied this into Word and copied straight to LJ.
It understood the syllables enough to separate them and transcribe the separated ones correctly at least.