Txog cov ntaub ntawv kaw suab Vietnamese
Lus Nyab Laj muaj suab nrov qis siab, thiab cov lus sau tseg yog sau nrog tag nrho cov cim suab thiab cov cim ntxiv (ă, â, đ, ê, ô, ơ, ư nrog rau tsib lub cim suab). Cov suab hais sab qaum teb, nruab nrab thiab sab qab teb yeej ua tau tag nrho; cov suab hnyav hauv nruab nrab yog cov nyuaj tshaj plaws.