Perhaps you should try some spelling variations:
thuc dan » thuc hanh, thuc vat
te sach » toc sach
sach ty » sach y, sach tu, sach thu
xang xa » lang xa, mang xa, ang xa
hanh de » hanh ve, hanh kem
cua tre » cua te, cuu tre, cua triet
qua am » quan am, qua ap, cua am
cua tu » cua tuc, cua su, cua cu

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