Perhaps you should try some spelling variations:
cua triet » su triet, va triet
cham duc » cham soc, pham duy, phan duc
cua viet » ca viet, hoa viet, cua vat
hieu ve » hieu va, hieu van
va tinh » may tinh
tinh va » tich va, trinh van, trinh vat
tu sai » tu bai, tu san, tu cai
sai ky » sac ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sai ky nang x ho. hieu ve ((cham duc) OR (pham duc)) va tinh va ((cua triet) or (cua viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky nang x ho. hieu ve ((cham duc) OR (pham duc)) va tinh va ((cua triet) OR (cua viet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sai ky nang x ho. hieu ve ((cham duc) OR (pham duc)) va tinh va ((cua triet) or (cua viet))".
• Adding a wildcard symbol may retrieve word variants: tu sai ky nang x ho. hieu ve ((cham duc) OR (pham duc)) va tinh va ((cua triet) or (cua viet))*.