Perhaps you should try some spelling variations:
thanh doi » thanh loi, thanh moi, thanh hoai
lieu van » hieu van, sieu van, lieu nano
thanh do » thanh de, thanh pho, thanh hoa
te sach » toc sach
sach ky » sac ky, sach y, sach ty
nang ma » tang ma, sang ma, nang cao
cua tre » cua te, cuu tre, cua triet
nam tu » nam thu, nam thuc
tu gia » tu giao, tu giac, tu giay

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky nang ma hoa. ((lieu van) or (lieu va)) nam tu gia ((thanh doi) OR (thanh do)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang ma hoa. ((lieu van) OR (lieu va)) nam tu gia ((thanh doi) OR (thanh do)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang ma hoa. ((lieu van) or (lieu va)) nam tu gia ((thanh doi) OR (thanh do)) cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach ky nang ma hoa. ((lieu van) or (lieu va)) nam tu gia ((thanh doi) OR (thanh do)) cua tre*.