Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
van thanh » ban thanh, van tuan
nam thuc » nam thuoc, nam thu, nam tu
thanh va » thanh van, hanh va, thanh ha
cao hoi » cau hoi, co hoi, cao hoc
thi van » thi lan, thi hanh, thi nang
nam luc » nang luc, nhan luc, nam duoc
te sai » te tai, te bai, te lai
sai ky » sac ky
va cua » va chua, via cua, ca cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sai ky nang cao hoi. thi van ((nam luc) or (((nam thuc) or (am thuc)))) van thanh va cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sai ky nang cao hoi. thi van ((nam luc) OR (((nam thuc) OR (am thuc)))) van thanh va cua triet.
• Adding a wildcard symbol may retrieve word variants: te sai ky nang cao hoi. thi van ((nam luc) or (((nam thuc) or (am thuc)))) van thanh va cua triet*.