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
xa doanh » va doanh, hoa doanh, van doanh
luan cua » quan cua, lua cua, luat cua
su sach » so sach
vu sach » vu bach, vu khach
nang ma » tang ma, sang ma, nang cao
hieu le » hieu ve, hieu he, hieu ly
thuc xa » thuc xay, tuc xa, thuc va
y nang » ky nang, ly nang, v nang
le nam » ly nam, he nam, le na

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 (vu sach)) y nang ma hoa. hieu le nam thuc xa doanh luan cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (vu sach)) y nang ma hoa. hieu le nam thuc xa doanh luan cua triet.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (vu sach)) y nang ma hoa. hieu le nam thuc xa doanh luan cua triet*.