Perhaps you should try some spelling variations:
thien van » thi van
van hanh » van thanh, ban hanh, van anh
su triet » su viet, su tien, ve triet
cao hoi » cau hoi, co hoi, cao hoc
nam luc » nhan luc, nam thuc, nam duoc
te san » te ban, ke san, tu san
san ky » sang ky, van ky, dan ky
vi su » va su, ve su, ki su

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

• Performing a fuzzy search may retrieve terms with similar spellings: te san ky nang cao hoi. thien van ((nam luc) or (nang luc)) van hanh vi su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te san ky nang cao hoi. thien van ((nam luc) OR (nang luc)) van hanh vi su triet.
• Adding a wildcard symbol may retrieve word variants: te san ky nang cao hoi. thien van ((nam luc) or (nang luc)) van hanh vi su triet*.