Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thien van » thi van
sang kyo » sang ky, sang tao, dang ky
nang cau » nang cao, hang cau, nang dau
thanh va » thanh van, thanh ha, thanh ve
hanh va » hang va, hanh vi
nam luc » nang luc, nhan luc, nam thuc
luc van » luoc van, luu van, duc van

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

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