Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
tinh lam » trinh lam, dinh lam, tinh lao
nang xa » nang x, lang xa, nang ma
tang ma » mang may, tang van
hieu ve » hieu va, hieu van
ve pham » vi pham, v pham, ve phan
va tinh » may tinh
cua tre » cua te, cuu tre, dua tren
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ky ((nang xa) or (tang ma)) hoi. hieu ve pham duc va tinh lam ((cua tre) OR (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky ((nang xa) OR (tang ma)) hoi. hieu ve pham duc va tinh lam ((cua tre) OR (cua triet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky ((nang xa) or (tang ma)) hoi. hieu ve pham duc va tinh lam ((cua tre) OR (cua triet))*".