Perhaps you should try some spelling variations:
thanh dam » thanh dat, thanh nam, thanh tam
cam truc » cau truc, nam truc, lam truoc
tang van » dang van, hoang van, trong van
te sach » toc sach
truc va » thuc va, thuc vat, trung va
cua tre » cua te, cuu tre, cua triet
sach ky » sac ky, sach y, sach ty
hieu va » hieu qua
van hoi » van hoa, van hoc, van hoe
ky tang » ky nang, ky dang, kho tang

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 tang van hoi. ((hieu va) OR (lieu va)) cam truc va ((thanh dam) or (lanh dao)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky tang van hoi. ((hieu va) OR (lieu va)) cam truc va ((thanh dam) OR (lanh dao)) cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky tang van hoi. ((hieu va) OR (lieu va)) cam truc va ((thanh dam) or (lanh dao)) cua tre*".