Dear all,
I am a vietnamese student pursuing post graduate degree. My major is engineering ( electronics, control engineering and automation)
I am received a funded position for combined ms- phd in South.Korea but, that university is average ranking( Chonnam national university, almost 600-700 both in QS and THE).
In order to find a research job( industry or academy) in Us, EU or AUS I suppose to I should take one more phd in EU after I complete combined program in Korea. My research interest in Korea is robotic, I recognize that there are many funded phd position of it in EU.
Is it acceptable to apply the second phd in the same major? I am grateful for advice to me

Hi, it's not usual to have two PhDs, especially in the same subject. You would probably struggle to get on a second PhD in Europe if you already have one. I doubt your university ranking matters that much (although that is very low). Once you get that PhD, you could always look for a postdoc in Europe.

Second phds do not help you find a job, they are looked on as proof that the researcher doesn't have real work experience. Unless you're an academic you should look for a postdoc instead, and be published.

Thanks for all your advice. TreeofLife, could you tell me your thought about ranking problem what you mentioned?
is it possible to find job in EU,US, AUS with my case? I met many guys who got post graduate jobs at there, almost all of them have phd from EU,US universities.
I am under consideration to finish my combined course ( because sponsor don't agree to change into Master course) and find master scholarship in EU, How do you think?

I would not advise doing a second PhD, it isn't really a step forward and probably wouldn't look very good to potential employers. Also, while yes there are funded PhD positions in the EU, many of them are only for EU students, and you might not be eligible. There is not much funding for Masters courses in my experience (and again as an international student your options would be even more limited).

I would not worry too much about university ranking. When it comes to getting a postdoc or research job, I think the most important things will be your publications (especially for academic positions) and your lab experience and skills.

I don't know, sorry, but maybe you could try applying for postdocs and see what happens? The competition is tough (for everyone), but you don't know until you try.

But most of those funded PhDs will only be for EU students though. I'm also confused about what you mean about accepting a postdoc. You don't have a PhD yet so you can't get a postdoc...

It's highly unlikely you will be accepted for a funded PhD if you already have one unless it's a totally different field. You can only apply for a postdoc if you already have a PhD.