Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
toc sach » hoc sach, doc sach, nuoc sach
tham tuc » tham thuc, thai tuc, nham thuc
va dinh » van dinh, va kinh, va tinh
va danh » va dan, va hanh, dia danh
va tham » van tham, va cham, va thanh
nang ma » tang ma, sang ma, nang cao
ly nang » ky nang, ly hang, ly vang
cua tre » cua te, cuu tre, cua triet
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) or (thuoc sach)) ly nang ma hoi. lieu va tham tuc ((va danh) OR (va dinh)) dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc sach) OR (thuoc sach)) ly nang ma hoi. lieu va tham tuc ((va danh) OR (va dinh)) dai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((toc sach) or (thuoc sach)) ly nang ma hoi. lieu va tham tuc ((va danh) OR (va dinh)) dai cua tre*".