Perhaps you should try some spelling variations:
nam thuc » nam thuoc, am thuc, nam thu
thanh ve » hanh ve, thanh va, thanh vien
thuc dan » thuc hanh, hoc dan, thuc vat
hanh de » hanh ve, hanh kem
vu sach » su sach, vu khach
hieu ve » hieu va, hieu van
mang xa » lang xa, mang may, dang xay
ty mang » ty xang, ty hang, tin mang
ve nam » he nam, va nam, le nam
cua te » cua tu

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: ((vu sach) OR (vu bach)) ty mang xa hoi. hieu ve nam thuc dan ((thanh ve) OR (hanh de)) cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sach) OR (vu bach)) ty mang xa hoi. hieu ve nam thuc dan ((thanh ve) or (hanh de)) cua te~".
• Adding a wildcard symbol may retrieve word variants: ((vu sach) OR (vu bach)) ty mang xa hoi. hieu ve nam thuc dan ((thanh ve) or (hanh de)) cua te*.