Perhaps you should try some spelling variations:
thien van » thi van
trinh vat » trinh van, trinh luat, sinh vat
toc sach » hoc sach, doc sach, thuoc sach
dinh lam » dinh van, tinh lao
tinh va » tich va, trinh van, tinh gia
cam duc » cam xuc, cao duc, pham duc
van cam » van nam, van lam, van cau
sang ma » tang ma, nang ma, sang tao
cua tre » cua te, cuu tre, cua triet
y sang » _ sang, duy sang
ma hoi » mai hoi, xa hoi, ma hoa

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 y sang ma hoi. thien van cam duc va ((((tinh va) OR (trinh vat))) or (dinh lam)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach y sang ma hoi. thien van cam duc va ((((tinh va) OR (trinh vat))) OR (dinh lam)) cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach y sang ma hoi. thien van cam duc va ((((tinh va) OR (trinh vat))) or (dinh lam)) cua tre*".