Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
nam thuc » nam thuoc, am thuc, nam thu
thuc ban » thuoc ban, thuc dan, thu ban
ban hanh » ban hang
hanh lai » hanh lam, hanh tai, thanh lap
may hoi » may thoi, tay hoi, mai hoi
ky mang » ky nang, ke mang, ky dang
hieu va » lieu va, hieu qua
lai cua » dai cua, hai cua, lai chau
tu sai » tu san, tu cai, tu lai
tu bai » tu ban, tu bat, te bai
va nam » van nam, ha nam, va nay

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sai) or (tu bai)) ky mang may hoi. hieu va nam thuc ban hanh lai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sai) OR (tu bai)) ky mang may hoi. hieu va nam thuc ban hanh lai cua triet.
• Adding a wildcard symbol may retrieve word variants: ((tu sai) or (tu bai)) ky mang may hoi. hieu va nam thuc ban hanh lai cua triet*.