Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
cua triet » cua viet, su triet, va triet
nang cau » nang cao, hang cau, nang dau
nam luoc » nam duoc, nam buoc, nam quoc
luoc van » luoc can, luoc va, luc van
thanh vi » hanh vi, thanh va, thanh ve
thi van » thi lan, thi hanh, thi nang
te sai » te tai, te bai, te lai
sai ky » sac ky
vi cua » vai cua, di 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 cau hoi. ((thien van) or (thi van)) nam luoc van thanh vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sai ky nang cau hoi. ((thien van) OR (thi van)) nam luoc van thanh vi cua triet.
• Adding a wildcard symbol may retrieve word variants: te sai ky nang cau hoi. ((thien van) or (thi van)) nam luoc van thanh vi cua triet*.