Perhaps you should try some spelling variations:
doc sach » hoc sach, toc sach, nuoc sach
hieu van » hieu va, thien van, lieu va
danh tai » doanh tai, dinh tai, hanh tai
sach ty » sach y, sach tu, sach thu
nang xa » lang xa, nang ma, mang xa
van hau » van ha, van hai, van dau
hau tuc » cau truc, hieu tuc, thai tuc
va danh » va dinh, va dan, va hanh
tuc va » thuc va, truc va, tuc xa
cuc te » cua te, cuc thue, cuc tieu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: doc sach ty ((nang xa) OR (nang x)) hoi. hieu van hau tuc va danh tai cuc te~.
• Adding a wildcard symbol may retrieve word variants: doc sach ty ((nang xa) or (nang x)) hoi. hieu van hau tuc va danh tai cuc te*.