Perhaps you should try some spelling variations:
thanh cuong » thanh chuong, thanh cong, thanh huong
thieu sang » chieu sang, thieu khang, thieu quang
cuong quan » luong quan, vuong quan, luong quang
quan dong » quang dong, quan long, quan hoang
khanh son » thanh son, nhanh song, thanh san
khach san » khach hang, thanh san

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc thieu sang - thanh cuong quan dong ((khanh son) or (khach san)) phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu sang - thanh cuong quan dong ((khanh son) OR (khach san)) phan tu.
• Adding a wildcard symbol may retrieve word variants: toc thieu sang - thanh cuong quan dong ((khanh son) or (khach san)) phan tu*.