Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
va thanh » gia thanh, ban thanh, va tinh
cau luc » cau truc, cau phuc
nang co » nang cao, nang doc, nang noi
hieu ve » hieu va, hieu van
va hanh » van hanh, va danh, ban hanh
le cua » ly cua
tu sac » tu sach, tu cac, tu bac
co hoi » co hoc, co loi
tu san » thu san, tu ban, tu can
ve cau » ke cau, va cau, ve cac

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