Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh tai » thanh tai, hang tai, han tai
ky lang » ky nang, ky dang, ky tang
lang ha » long ha
hieu va » hieu qua
va hanh » van hanh, va thanh, ban hanh
tai cua » thai cua, tai cuc, tri cua
xu bac » xa bac
bac ky » cac ky, ban ky, sac ky
ha hoi » hoa hoi, ha noi, xa hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: xu bac ky lang ha hoi. ((hieu va) or (lieu va)) co hoc va hanh tai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: xu bac ky lang ha hoi. ((hieu va) OR (lieu va)) co hoc va hanh tai cua triet.
• Adding a wildcard symbol may retrieve word variants: xu bac ky lang ha hoi. ((hieu va) or (lieu va)) co hoc va hanh tai cua triet*.