Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
van thanh » ban thanh
thien van » thi van
nang doc » nang luc
van tuan » van quan, van ban, anh tuan
nam luc » nang luc, nhan luc, nam thuc
nang co » nang cao, nang noi, nang hoc
sac ky » cac ky, sai ky
vi cua » vai cua, di cua
te sac » te sach, te cac, te san

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ky ((nang co) or (nang doc)) hoi. thien van nam luc ((van thanh) OR (van tuan)) vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky ((nang co) OR (nang doc)) hoi. thien van nam luc ((van thanh) OR (van tuan)) vi cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky ((nang co) or (nang doc)) hoi. thien van nam luc ((van thanh) OR (van tuan)) vi cua triet".
• Adding a wildcard symbol may retrieve word variants: te sac ky ((nang co) or (nang doc)) hoi. thien van nam luc ((van thanh) OR (van tuan)) vi cua triet*.