Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
thanh va » thanh van, hanh va, thanh ha
thanh vi » hanh vi, thanh ve, nhanh vi
cau luc » cau truc, cau phuc
luc ban » duc ban, cuc ban, luc bat
van cau » van dau, van hau, van chat
thi van » thi lan, thi hanh, thi nang
mai hoi » mai khoi, dai hoi, lai hoi
sai ky » sac ky
ma hoi » xa hoi, ma hoa, me hoi
su sai » su tai, su hai, su dai

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

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