Perhaps you should try some spelling variations:
chet duoc » che duoc, cho duoc, che quoc
chieu cao » hieu cac, hieu ca, chieu day
vu khach » vu khanh, vu khac, vay khach
khach ly » khanh ly, khao ly, khich le
cao chet » cao chat, cai chet, chai chet
cua viet » ca viet, hoa viet, cua vat
sang ma » tang ma, nang ma, sang tao
duoc ma » duoc lam
ma hanh » va hanh, da hanh, na hanh
hanh di » hanh vi, hanh de, hang di
cua tre » cua te, cuu tre, cua triet

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu khach ly ((nang x) or (sang ma)) hoi. chieu cao chet duoc ma hanh di ((cua tre) or (cua viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu khach ly ((nang x) OR (sang ma)) hoi. chieu cao chet duoc ma hanh di ((cua tre) OR (cua viet)).
• Adding a wildcard symbol may retrieve word variants: vu khach ly ((nang x) or (sang ma)) hoi. chieu cao chet duoc ma hanh di ((cua tre) or (cua viet))*.