Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
hien tinh » khien tinh, thien tinh, bien tinh
doanh cua » doanh luan
cua khong » hua khong, cua phuong, cua thuong
duong van » duong va, luong va, trong van
dang van » hoang van, hang va
than cao » toan cao, thai cao, than cap

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 tinh - hanh doanh cua khong ((duong van) OR (dang van)) than cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien tinh - hanh doanh cua khong ((duong van) OR (dang van)) than cao*".