Perhaps you should try some spelling variations:
hanh dinh » thanh dinh, hinh dinh, hanh tinh
cham thuc » nham thuc, pham thuc, tham thuc
dinh cuu » dinh chi
toc sach » hoc sach, doc sach, thuoc sach
va hanh » van hanh, va thanh, va danh
thuc va » thuc vat, thuc dan, thuc day
va cham » va chat, va tham
hieu va » lieu va, hieu qua
lang xa » lang ha, dang xay, lang van
nang xa » nang x, nang ma, mang xa
cuu tre » cua tre, cau tren, cau treo

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: ((te sach) OR (toc sach)) ty ((nang xa) OR (lang xa)) hoi. hieu va cham thuc va hanh dinh cuu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) OR (toc sach)) ty ((nang xa) or (lang xa)) hoi. hieu va cham thuc va hanh dinh cuu tre~".
• Adding a wildcard symbol may retrieve word variants: ((te sach) OR (toc sach)) ty ((nang xa) or (lang xa)) hoi. hieu va cham thuc va hanh dinh cuu tre*.