Perhaps you should try some spelling variations:
cua triet » cua viet, va triet
thanh cac » hanh cac, thanh bac, thanh ca
su triet » su viet, su tien, ve triet
hieu van » hieu va, thien van, lieu va
va thanh » gia thanh, ban thanh, va tinh
cam luc » cam xuc, cau luc
so sanh » do sanh
sanh ky » hanh ky, sang ky, nganh ky
tang ma » mang may, tang van
sang ma » nang ma, sang tao, mang may
van cam » van nam, van lam, van cau
luc va » duc va, tuc va, loc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sanh ky ((sang ma) or (tang ma)) hoi. hieu van cam luc va thanh cac ((cua triet) OR (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sanh ky ((sang ma) OR (tang ma)) hoi. hieu van cam luc va thanh cac ((cua triet) OR (su triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sanh ky ((sang ma) or (tang ma)) hoi. hieu van cam luc va thanh cac ((cua triet) OR (su triet))".
• Adding a wildcard symbol may retrieve word variants: so sanh ky ((sang ma) or (tang ma)) hoi. hieu van cam luc va thanh cac ((cua triet) OR (su triet))*.