Perhaps you should try some spelling variations:
nang dau » hang dau, xang dau, nang du
te sach » toc sach
va cham » va chat, va tham
nang xa » lang xa, nang ma, mang xa
dau cua » dai cua, day cua, cau cua
va nang » van nang, da nang, cam nang
thuc va » thuc vat, thuc dan, thuc day
cua te » cua tu
va cai » va cac, va bai, va dai

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 y ((nang xa) OR (nang x)) hoi. hieu ((va cai) OR (va cham)) thuc va nang dau cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y ((nang xa) OR (nang x)) hoi. hieu ((va cai) or (va cham)) thuc va nang dau cua te~".
• Adding a wildcard symbol may retrieve word variants: te sach y ((nang xa) OR (nang x)) hoi. hieu ((va cai) or (va cham)) thuc va nang dau cua te*.