Perhaps you should try some spelling variations:
danh than » danh thanh, danh thang, danh nhan
hieu van » hieu va, thien van, lieu va
ban phuc » van phuc, hanh phuc, ban thuoc
than cua » nhan cua, thai cua, ban cua
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
xang xa » lang xa, ang xa, dang xay
mang xa » lang xa, dang xay, mang cua
phuc va » phuc vu, thuc va, chuc va
va danh » va dinh, va dan, va hanh
cua tre » cua te, cuu tre, cua triet

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ty ((xang xa) or (((mang xa) or (mang may)))) hoi. hieu van ban phuc va danh than cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty ((xang xa) OR (((mang xa) OR (mang may)))) hoi. hieu van ban phuc va danh than cua tre.
• Adding a wildcard symbol may retrieve word variants: su sach ty ((xang xa) or (((mang xa) or (mang may)))) hoi. hieu van ban phuc va danh than cua tre*.