Perhaps you should try some spelling variations:
cua triet » su triet, va triet
thanh lap » thanh san, phan lap, thanh hai
cua viet » ca viet, hoa viet, cua vat
nam thuc » nam thuoc, am thuc, nam thu
va thanh » gia thanh, ban thanh, va tinh
thuc va » thuc vat, thuc dan, thuc day
so sach » so sanh, bo sach, co sach
hieu ve » hieu va, hieu van
sang ma » tang ma, nang ma, sang tao
ve nam » he nam, va nam, le nam

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach y ((mang may) or (sang ma)) hoi. hieu ve nam thuc va thanh lap ((cua triet) or (cua viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach y ((mang may) OR (sang ma)) hoi. hieu ve nam thuc va thanh lap ((cua triet) OR (cua viet))*.