Perhaps you should try some spelling variations:
van tham » van thanh, van tuan, van chat
hieu van » hieu va, thien van, lieu va
tham tuc » tham thuc, thai tuc, nham thuc
lang xa » lang ha, dang xay, lang van
sach ky » sac ky, sach ty, sach kem
va danh » va dinh, va hanh, dia danh
doi cua » dai cua, hoi cua
cua tre » cua te, cuu tre, cua triet
va dan » ca dan, va dao, va dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc ((sach ky) OR (sach y)) lang xa hoi. hieu van tham tuc ((va danh) or (va dan)) doi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc ((sach ky) OR (sach y)) lang xa hoi. hieu van tham tuc ((va danh) OR (va dan)) doi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc ((sach ky) OR (sach y)) lang xa hoi. hieu van tham tuc ((va danh) or (va dan)) doi cua tre".
• Adding a wildcard symbol may retrieve word variants: thuoc ((sach ky) OR (sach y)) lang xa hoi. hieu van tham tuc ((va danh) or (va dan)) doi cua tre*.