Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
va thanh » gia thanh, ban thanh, va tinh
thanh de » hanh de, thanh ve, thanh do
nam thuc » nam thuoc, am thuc, nam thu
cua tre » cua te, cuu tre, dua tren
mai hoi » mai khoi, dai hoi, lai hoi
hieu le » hieu ve, hieu he, hieu ly
thuc va » thuc vat, thuc dan, thuc day
tu cao » cu cao, tu cac, vu cao
ma hoi » xa hoi, ma hoa, me hoi
le nam » ly nam, he nam, le na

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: tu cao ky nang ((ma hoi) OR (mai hoi)). hieu le nam thuc va thanh de ((cua tre) OR (cua triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cao ky nang ((ma hoi) or (mai hoi)). hieu le nam thuc va thanh de ((cua tre) OR (cua triet))~".
• Adding a wildcard symbol may retrieve word variants: tu cao ky nang ((ma hoi) or (mai hoi)). hieu le nam thuc va thanh de ((cua tre) OR (cua triet))*.