Perhaps you should try some spelling variations:
doanh luan » doanh nhan
cua triet » cua viet, su triet, va triet
nam thuc » nam thuoc, am thuc, nam thu
va doanh » van doanh, vay doanh, va danh
luan cua » quan cua, lua cua, luat cua
su sach » so sach, vu sach
co sach » bo sach, cuon sach, hoc sach
hieu ve » hieu va, hieu van
thuc va » thuc vat, thuc dan, thuc day
y nang » ly nang, v nang, may nang
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: ((su sach) or (co sach)) ((y nang) or (ky nang)) ma hoa. hieu ve nam thuc va doanh luan cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (co sach)) ((y nang) OR (ky nang)) ma hoa. hieu ve nam thuc va doanh luan cua triet.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (co sach)) ((y nang) or (ky nang)) ma hoa. hieu ve nam thuc va doanh luan cua triet*.