Perhaps you should try some spelling variations:
thien van » thi van
nang cau » nang cao, hang cau, nang dau
van cham » van chat, van tham, va cham
hanh lam » thanh lap, hanh va, dinh lam
vu triet » su triet, ve triet, va triet
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
loc va » luc va
kem » kiem

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky nang cau hoi. thien van cham ((loc va) or (hoc va)) ((hanh lam) or (hanh kem)) vu triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang cau hoi. thien van cham ((loc va) OR (hoc va)) ((hanh lam) OR (hanh kem)) vu triet.
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang cau hoi. thien van cham ((loc va) or (hoc va)) ((hanh lam) or (hanh kem)) vu triet*.