Perhaps you should try some spelling variations:
thuong luong » theo luong, cong luong, thong thuong
thieu sang » chieu sang, thieu khang, thieu quang
tai thuong » tai phuong, tai truong, thi thuong
tranh tai » tranh thai, trinh tai, thanh tai
manh toan » thanh toan, anh tuan, tinh toan
dan toan » van toan, dan than, xuan toan

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

• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu sang - canh tranh tai thuong luong ((dan toan) OR (manh toan)) cau~.
• Adding a wildcard symbol may retrieve word variants: toc thieu sang - canh tranh tai thuong luong ((dan toan) or (manh toan)) cau*.