Anyone changed European passport in Asia?

I have only 3 empty pages left in my passport and according to speed of filling, I have 6 months. I don’t really want to go back to Europe just to change my passport.

So, anyone had this problem? is it possible to add pages to passport in Asia (i’ll be in Vietnam, Thailand and Taiwan during those dates)? Or maybe change it?

I renewed my passport (Swedish) last year in Bangkok, where my closest embassy is.

Also in Bangkok, Had to give them fingerprints twice: when applied and when picked it up 2 weeks later. Make sure your embassy gives you a separate confirmation letter that you submit to Thai Immigration to transfer visa to new passport.