Perhaps you should try some spelling variations:
thuc van » thuc vat, thuc dan, thuc va
nam thuc » nam thuoc, am thuc, nam thu
so sach » so sanh, bo sach, co sach
cua tre » cua te, cua triet, dua tren
anh hoi » anh noi, anh hoc, anh khoa
van anh » van thanh, tuan anh, van minh
cuu tre » cau tren, cau treo
hieu le » hieu ve, hieu he, hieu ly
mang xa » lang xa, mang may, dang xay
sach v » sach va, sach y, sach 2
le nam » ly nam, he nam, le na

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach v ((mang xa) or (nang x)) hoi. hieu le nam thuc van anh hoi ((cua tre) OR (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach v ((mang xa) OR (nang x)) hoi. hieu le nam thuc van anh hoi ((cua tre) OR (cuu tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach v ((mang xa) or (nang x)) hoi. hieu le nam thuc van anh hoi ((cua tre) OR (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: so sach v ((mang xa) or (nang x)) hoi. hieu le nam thuc van anh hoi ((cua tre) OR (cuu tre))*.