Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
nang xa » nang x, lang xa, nang ma
va danh » va dinh, va dan, dia danh
va hanh » van hanh, va thanh, ban hanh
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
va cao » va cac, va co, va bao
va dao » ca dao
ve su » va su

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 xa hoi. hieu ((va cao) OR (va dao)) xuc ((va hanh) or (va danh)) ve su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang xa hoi. hieu ((va cao) OR (va dao)) xuc ((va hanh) OR (va danh)) ve su triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky nang xa hoi. hieu ((va cao) OR (va dao)) xuc ((va hanh) or (va danh)) ve su triet".
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang xa hoi. hieu ((va cao) OR (va dao)) xuc ((va hanh) or (va danh)) ve su triet*.