Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
van hanh » van thanh, van anh, van ban
ban hanh » ban hang
tu cong » thu cong, te cong, thi cong
vai cua » dai cua, hai cua, lai cua
hieu ve » hieu va, hieu van
cac xuc » cam xuc, cac nuoc, chat xuc
su cac » tu cac, su cao, su can
ve cac » va cac, vien cac
x hoi » xa hoi, o hoi, x ho

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 cong) or (tai cong)) x hoi. hieu ve cac xuc ((van hanh) or (ban hanh)) vai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su cac ((tu cong) OR (tai cong)) x hoi. hieu ve cac xuc ((van hanh) OR (ban hanh)) vai cua triet.
• Adding a wildcard symbol may retrieve word variants: su cac ((tu cong) or (tai cong)) x hoi. hieu ve cac xuc ((van hanh) or (ban hanh)) vai cua triet*.