Perhaps you should try some spelling variations:
thien van » thi van
van thanh » ban thanh, van tuan
thanh vai » thanh hai, thanh van, thanh tai
va triet » va thiet, va trien, ve triet
te sang » te bang, te hang, te san
sang ky » sang kyo, dang ky, tang ky
cao hoi » cau hoi, tao hoi, cao hon
cao hoc » co hoc, cho hoc, chat hoc
nam luc » nang luc, nhan luc, nam thuc
luc van » luoc van, luu van, duc van
co hoi » co hoc, co loi
vai va » mai va, dai va, hai va

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 (cao hoc))) or (co hoi)). thien van nam luc van thanh vai va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sang ky nang ((((cao hoi) OR (cao hoc))) OR (co hoi)). thien van nam luc van thanh vai va triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sang ky nang ((((cao hoi) OR (cao hoc))) or (co hoi)). thien van nam luc van thanh vai va triet".
• Adding a wildcard symbol may retrieve word variants: te sang ky nang ((((cao hoi) OR (cao hoc))) or (co hoi)). thien van nam luc van thanh vai va triet*.