Perhaps you should try some spelling variations:
choc chinh » cuoc chinh, cho chinh, chon chinh
hanh doanh » hang doanh, chinh doanh, doanh doanh
hoc chinh » hoan chinh, hoc sinh, hoc kinh
doanh cua » doanh luan
cong cong » trong cong, dung cong, dang cong
san toan » van toan, dan toan, manh toan
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc chinh) or (choc chinh)) sach - hanh doanh cua ((cong cong) OR (cong dong)) san toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chinh) OR (choc chinh)) sach - hanh doanh cua ((cong cong) OR (cong dong)) san toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc chinh) or (choc chinh)) sach - hanh doanh cua ((cong cong) OR (cong dong)) san toan cao".
• Adding a wildcard symbol may retrieve word variants: ((hoc chinh) or (choc chinh)) sach - hanh doanh cua ((cong cong) OR (cong dong)) san toan cao*.