Perhaps you should try some spelling variations:
hanh dinh » thanh dinh, hinh dinh, hanh tinh
cau tren » cu tren, dau tren, ca tren
xmang xa » lang xa, hoang xa, ang xa
hieu van » hieu va, thien van, lieu va
sach thu » sach thue, sach thieu, sach tham
va hanh » van hanh, va thanh, va danh
cuu tre » cua tre, cau treo
su sach » so sach, vu sach
cac duc » cac du, cao duc, cac dac
mang xa » lang xa, mang may, dang xay
van cac » van hac, van cau, van bac

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 thu ((xmang xa) or (mang xa)) hoi. hieu van cac duc va hanh dinh ((cuu tre) OR (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach thu ((xmang xa) OR (mang xa)) hoi. hieu van cac duc va hanh dinh ((cuu tre) OR (cau tren))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach thu ((xmang xa) or (mang xa)) hoi. hieu van cac duc va hanh dinh ((cuu tre) OR (cau tren))*".