Hi everyone

[Lenguyen]

i am tung.i teach very bad english.expect all people can help me .thank you all people very much

I'm not picking on you at all, Just a minor correction to your sentence if it's ok with you.
Do you teach English? I think you are trying to say: I'm Tùng , My English is not very good, hope everyone can help me.Thank you all very much.
The word 'You' implies the second person, so using 'people' there is redundent.

Lenguyen.