Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
van hanh » van thanh, ban hanh, van anh
vai cua » dai cua, hai cua, lai cua
va hanh » va thanh, va danh, ban hanh
cac xuc » cam xuc, cac nuoc, chat xuc
hieu va » lieu va, hieu qua
tu nang » tru nang, tu nong, tu nano
cac tu » cac thu, cach tu, cac du
su cac » tu cac, su cao, su can
o hoi » co hoi, o hoc, o hai
x hoi » xa hoi, x ho, 5 hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: su cac tu nang ((x hoi) or (o hoi)). hieu va cac xuc ((va hanh) or (van hanh)) vai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su cac tu nang ((x hoi) OR (o hoi)). hieu va cac xuc ((va hanh) OR (van hanh)) vai cua triet.
• Adding a wildcard symbol may retrieve word variants: su cac tu nang ((x hoi) or (o hoi)). hieu va cac xuc ((va hanh) or (van hanh)) vai cua triet*.