I know it's not best place to write this .Briefly, my problem is finding national chemistry Olympiads and team selection problems in English. Yep ,I tried Google But in vain, there is no information for Asian countries ,which are leaders in this subject( Korea , Japan , China , Vietnam , Thailand , Indonesia etc.) and strong European countries( post-soviet and north-east ) , and not only that .Finding all that maybe easy for you if you're native and you're involved with this Olympiads .Better ignore it than post senseless comments ! THANKS IN ADVANCE !!