Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
qua cham » qua hai, qua cac, qua cua
va danh » va dinh, va dan, dia danh
va hanh » van hanh, va thanh, ban hanh
va cham » va chat, va tham
ky mang » ky nang, ke mang, ky dang
may hoi » may thoi, tay hoi, mai hoi
san ky » sang ky, van ky, dan ky
tai su » tai so, tai tu, lai su
tu san » thu san, tu ban, tu can

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu san ky mang may hoi. hieu ((qua cham) or (va cham)) tuc ((va hanh) OR (va danh)) tai su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu san ky mang may hoi. hieu ((qua cham) OR (va cham)) tuc ((va hanh) OR (va danh)) tai su triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu san ky mang may hoi. hieu ((qua cham) or (va cham)) tuc ((va hanh) OR (va danh)) tai su triet*".