Perhaps you should try some spelling variations:
thien van » thi van
hanh lam » thanh lap, hanh kem, hanh va
van cham » van chat, van tham, va cham
su triet » su viet, su tien, ve triet
nang dau » hang dau, xang dau, nang du
dau hoi » cau hoi, dai hoi, dan hoi
tu bai » tu ban, tu bat, te bai
soc va » loc va, doc va, goc va
lam su » lai su, lam so, lam vu
tu sai » tu san, tu cai, tu lai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sai) OR (tu bai)) ky nang dau hoi. thien van cham ((soc va) or (hoc va)) hanh lam su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sai) OR (tu bai)) ky nang dau hoi. thien van cham ((soc va) OR (hoc va)) hanh lam su triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sai) OR (tu bai)) ky nang dau hoi. thien van cham ((soc va) or (hoc va)) hanh lam su triet*".