Ngo Hoai Nam@hoai_nam_a1_9xFollow BadgesProblem Solving CertificationsCertificate: Problem Solving (Basic)VerifiedskillWork Experiencehoai_nam_a1_9x has not updated employment details yet.EducationMam non A Ba DinhLinkshoai_nam_a1_9x has not updated links details yet. Skillshoai_nam_a1_9x has not updated skills details yet.