Perhaps you should try some spelling variations:
hanh dinh » thanh dinh, hinh dinh, hanh tinh
hieu van » hieu va, thien van, lieu va
te sach » toc sach
dinh cu » dinh cuu, dinh chuc, dinh chau
van hac » van hoc, van ha, van hai
tay hoi » tay ho, tao hoi, tay thai
ky danh » ky anh
ky dang » ky nang
xuc va » duc va, tuc va, luc va
cu tre » cu tren, cua tre, cuu tre

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ((ky dang) or (ky danh)) tay hoi. hieu van hac ((xuc va) or (thuc vat)) hanh dinh cu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ky dang) OR (ky danh)) tay hoi. hieu van hac ((xuc va) OR (thuc vat)) hanh dinh cu tre.
• Adding a wildcard symbol may retrieve word variants: te sach ((ky dang) or (ky danh)) tay hoi. hieu van hac ((xuc va) or (thuc vat)) hanh dinh cu tre*.