Perhaps you should try some spelling variations:
doanh doanh » toan doanh, doanh hoan, dong doanh
doanh thanh » danh thanh, doanh nhan, dinh thanh
chieu sang » chieu sach, chieu xanh, hieu lang
chiet tach » chieu sach
dung cong » dung trong
qua dung » quang dung, su dung, qua song
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van 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: ho ((chieu sang) or (chiet tach)) - ((doanh doanh) OR (doanh thanh)) qua dung cong tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (chiet tach)) - ((doanh doanh) OR (doanh thanh)) qua dung cong tan toan cao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) or (chiet tach)) - ((doanh doanh) OR (doanh thanh)) qua dung cong tan toan cao*".