Perhaps you should try some spelling variations:
dao thuc » dan thuc, dao tuc, do thuc
hanh vai » hanh vi, hanh va, hanh tai
sach ty » sach tu, sach thu, xach tay
cua tre » cua te, cua triet, dua tren
va hanh » van hanh, va thanh, va danh
thuc va » thuc vat, thuc dan, thuc day
hieu va » lieu va, hieu qua
nang xa » nang x, lang xa, nang ma
cuu tre » cau tren, cau treo
va dao » ca dao

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