Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
nang noi » nang doc
danh vai » danh sai, danh va, doanh van
thu sac » thu sach, thu san, thu xac
noi hoi » noi doi, doi hoi, hoi hoi
hieu va » hieu qua
thuc va » thuc dan, thuc day
vai cua » dai cua, hai cua, lai cua
sac ky » cac ky, sai ky

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: thu sac ky nang noi hoi. ((hieu va) OR (lieu va)) am ((thuc va) OR (thuc vat)) danh vai cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sac ky nang noi hoi. ((hieu va) or (lieu va)) am ((thuc va) OR (thuc vat)) danh vai cua triet~".
• Adding a wildcard symbol may retrieve word variants: thu sac ky nang noi hoi. ((hieu va) or (lieu va)) am ((thuc va) OR (thuc vat)) danh vai cua triet*.