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

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

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