Perhaps you should try some spelling variations:
doanh thanh » danh thanh, doanh nhan, dinh thanh
doanh doanh » toan doanh, doanh hoan, dong doanh
chieu sang » chieu sach, chieu xanh, hieu lang
dang cong » dung cong
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
cua sinh » hoa sinh, va sinh
cua dang » cua cong, cua ban
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 (cua sinh)) - ((doanh doanh) OR (doanh thanh)) cua dang cong manh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (cua sinh)) - ((doanh doanh) OR (doanh thanh)) cua dang cong manh toan cao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) or (cua sinh)) - ((doanh doanh) OR (doanh thanh)) cua dang cong manh toan cao*".