Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
ban hanh » ban hang
hanh tai » thanh tai, hang tai, han tai
cao hoi » cau hoi, cao hoc, tao hoi
hieu ve » hieu va, hieu van
cac xuc » cac nuoc, chat xuc, cac cuoc
tai cua » thai cua, tai cuc, tri cua
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
co hoi » co hoc, co loi

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ky nang ((cao hoi) OR (co hoi)). hieu ve ((cac xuc) or (cam xuc)) ban hanh tai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky nang ((cao hoi) OR (co hoi)). hieu ve ((cac xuc) OR (cam xuc)) ban hanh tai cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky nang ((cao hoi) OR (co hoi)). hieu ve ((cac xuc) or (cam xuc)) ban hanh tai cua triet".
• Adding a wildcard symbol may retrieve word variants: te sac ky nang ((cao hoi) OR (co hoi)). hieu ve ((cac xuc) or (cam xuc)) ban hanh tai cua triet*.