Perhaps you should try some spelling variations:
thieu nien » thien nhien
va triet » va thiet, va trien, ve triet
su triet » su viet, su tien, ve triet
thanh vi » hanh vi, thanh va, thanh ve
va thanh » gia thanh, ban thanh, va tinh
nien cac » vien cac, dien cac, bien cac
bai phoi » bai choi, bai hoc, dai hoi
cac luc » cau luc, coc luc, cac nuoc
sac ke » tac ke, sac ky, mac ke
luc va » duc va, tuc va, loc va
cac ke » cac ket, tac ke, cac ky

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sac ke) or (cac ke)) va bai phoi. thieu nien cac luc va thanh vi ((su triet) or (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sac ke) OR (cac ke)) va bai phoi. thieu nien cac luc va thanh vi ((su triet) OR (va triet)).
• Adding a wildcard symbol may retrieve word variants: tu ((sac ke) or (cac ke)) va bai phoi. thieu nien cac luc va thanh vi ((su triet) or (va triet))*.