Perhaps you should try some spelling variations:
thien van » thi van
cham truc » cau truc, nham thuc, pham thuc
toc sach » hoc sach, doc sach, thuoc sach
danh sai » dung sai, danh bat, hanh san
van cham » van chat, van tham, va cham
danh dau » lanh dao, hang dau, danh tu
cua tre » cuu tre, cua triet, dua tren
sach ky » sac ky, sach y, sach ty
truc va » thuc va, thuc vat, trung va
cua te » cua tu
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach ky nang x hoi. thien van cham truc va ((danh sai) or (danh dau)) ((cua tre) OR (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ky nang x hoi. thien van cham truc va ((danh sai) OR (danh dau)) ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ky nang x hoi. thien van cham truc va ((danh sai) or (danh dau)) ((cua tre) OR (cua te))".
• Adding a wildcard symbol may retrieve word variants: toc sach ky nang x hoi. thien van cham truc va ((danh sai) or (danh dau)) ((cua tre) OR (cua te))*.