Perhaps you should try some spelling variations:
thuc dan » thuc hanh, hoc dan, thuc vat
dan hang » ban hang, van hang, dat hang
te sach » toc sach
sach ty » sach y, sach tu, sach thu
xang xa » lang xa, mang xa, ang xa
hieu va » lieu va, hieu qua
hang di » hang doi, hang vi, hang dien
cua tre » cuu tre, cua triet, dua tren
cua te » cua tu
va am » va lam, va cam

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 ty xang xa hoi. hieu va am thuc dan hang di ((cua tre) OR (cua te))~.
• Adding a wildcard symbol may retrieve word variants: te sach ty xang xa hoi. hieu va am thuc dan hang di ((cua tre) or (cua te))*.