Many companies (in Australia and New Zealand at least, it may or may not be the same in Asia but I'd imagine it's similar for good companies) won't interview candidates who are outside the country and/or don't have a valid work visa. The risk that the candidate will not be granted a visa or will change their mind about moving is high, and so it's commonly considered a waste of time.
My source for this is conversations I had with recruiters while applying to jobs in Australia from outside the country (with a valid visa). In my case it turned out that I received no interest during six months of applications from outside the country, but within three weeks of moving to Sydney I had two good job offers.
So first look at the visa requirements for the country you want to move to. Are you eligible for a working visa there? How long does the application process take, and what does it require? If you can't get a work visa then you can't work in that country no matter what.
Then do some job market research - try and get in touch with companies / recruiters / professionals in the area you want to work in, and see if the situation is similaryou could expect interest in your CV if you were local, or if there's just not a good job market there at the moment. Then look at the cost of living and see if your savings will cover you if things go wrong and you aren't able to find employment after moving there (and don't forget that moving is really expensive too). Then take your research, weigh up the options, and make a decision.