Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
van thanh » ban thanh, van tuan
cua triet » cua viet, va triet
su triet » su viet, su tien, ve triet
te sang » te bang, te hang, te san
sang ky » sang kyo, dang ky, tang ky
cao hoi » cau hoi, cao hoc, tao hoi
thi van » thi lan, thi hanh, thi nang
nam luc » nang luc, nhan luc, nam thuc
luc van » luoc van, luu van, duc van
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 sang ky nang ((cao hoi) or (co hoi)). thi van nam luc van thanh vai ((cua triet) OR (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sang ky nang ((cao hoi) OR (co hoi)). thi van nam luc van thanh vai ((cua triet) OR (su triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sang ky nang ((cao hoi) or (co hoi)). thi van nam luc van thanh vai ((cua triet) OR (su triet))".
• Adding a wildcard symbol may retrieve word variants: te sang ky nang ((cao hoi) or (co hoi)). thi van nam luc van thanh vai ((cua triet) OR (su triet))*.