Perhaps you should try some spelling variations:
thuc dan » thuc hanh, hoc dan, thuc vat
te sach » toc sach
sach ty » sach y, sach tu, sach thu
xang xa » lang xa, mang xa, ang xa
thuc va » thuc vat, thuc day
hanh di » hanh vi, hanh de, hang di
cua tre » cuu tre, cua triet, dua tren
qua am » quan am, qua ap, cua am
cua te » cua tu

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