Perhaps you should try some spelling variations:
sach ty » sach y, sach tu, sach thu
xang xa » lang xa, mang xa, ang xa
hieu va » lieu va, hieu qua
thuc va » thuc vat, thuc dan, thuc day
va hanh » van hanh, va thanh, va danh
hanh di » hanh vi, hanh de, hang di
cuu tre » cua tre, cau tren, cau treo
di cuu » di cau, di cua, dinh cuu
va am » va lam, va cam

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 ty) or (sach thieu)) xang xa hoi. hieu va am thuc va hanh di cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ty) OR (sach thieu)) xang xa hoi. hieu va am thuc va hanh di cuu tre.
• Adding a wildcard symbol may retrieve word variants: te ((sach ty) or (sach thieu)) xang xa hoi. hieu va am thuc va hanh di cuu tre*.