I asked my parents for the meaning of Do and Tri

Hi, me again. I had asked my parents the meanings to Do and Tri. Now please understand my parents don't speak English very well and trying to explain to me a Vietnamese word might be just little off but I'll try anyhow. Do means, somewhere along the lines of, successful. Tri is somewhere along the lines of one who does not give up, consistant. Hope I helped you. Good luck with your child.