Perhaps you should try some spelling variations:
thieu sang » chieu sang, thieu khang, thieu quang
canh doanh » hanh doanh, chinh doanh, doanh doanh
doanh luan » doanh nhan
hoc thieu » toc thieu, hoc hien
tong cong » trong cong, dung cong, dang cong
cong cong » cong dong, trong cong, dung cong
van toan » van tuan, van tan, van thanh
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu sang - canh doanh luan ((((tong cong) OR (cong cong))) or (thong thong)) van toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sang - canh doanh luan ((((tong cong) OR (cong cong))) OR (thong thong)) van toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu sang - canh doanh luan ((((tong cong) OR (cong cong))) or (thong thong)) van toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc thieu sang - canh doanh luan ((((tong cong) OR (cong cong))) or (thong thong)) van toan ban*.