Chiêm Trấn Hải@ctranhaiVietnamFollow BadgesProblem SolvingJavaDays of CodeSql CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillWork Experiencectranhai has not updated employment details yet.Educationctranhai has not updated education details yet.