Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
danh dai » danh dau, danh di, danh sai
nang co » nang cao, nang doc, nang noi
hieu va » lieu va
thuc va » thuc vat, thuc dan, thuc day
va danh » va dinh, va dan, va hanh
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
co loi » co hoi

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 sac ky nang co loi. ((hieu va) OR (hieu qua)) am thuc va danh dai cua triet~.
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang co loi. ((hieu va) or (hieu qua)) am thuc va danh dai cua triet*.