Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, dua tren
va xanh » va danh, va anh, va banh
hieu ve » hieu va, hieu van
cac luc » cau luc, coc luc, cac nuoc
sac ky » cac ky, sai ky
ve cac » va cac, vien cac
te sac » te sach, te cac, te san
x hoi » xa hoi, o hoi, x ho

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 x hoi. hieu ve cac luc ((va xanh) OR (va hanh)) di ((cua tre) OR (cua triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky nang x hoi. hieu ve cac luc ((va xanh) OR (va hanh)) di ((cua tre) or (cua triet))~".
• Adding a wildcard symbol may retrieve word variants: te sac ky nang x hoi. hieu ve cac luc ((va xanh) OR (va hanh)) di ((cua tre) or (cua triet))*.