Perhaps you should try some spelling variations:
doanh doanh » toan doanh, doanh hoan, doanh thanh
thong cong » trong cong, tong cong, thong thong
hien sach » dien sach, kien sach, thien hach
doanh cua » doanh luan
cua thong » cua thuong, cua khong, cua tong
dan than » ban than, van than, dang thanh
dan toan » van toan, manh toan, xuan toan
dan chan » dan gian, dan ca, van chat

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien sach - doanh doanh cua thong cong ((((dan than) OR (dan toan))) or (dan chan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien sach - doanh doanh cua thong cong ((((dan than) OR (dan toan))) OR (dan chan)) cao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien sach - doanh doanh cua thong cong ((((dan than) OR (dan toan))) or (dan chan)) cao*".