Perhaps you should try some spelling variations:
thieu sang » chieu sang, thieu khang, thieu quang
hoc thieu » toc thieu, hoc hien
canh manh » lanh manh, canh tranh, cach mang
manh chua » manh cua, tranh chua, benh chua
chua bang » chu bang, chua nang, chua xang
bang song » nang song
dan chan » dan gian, dan ca, van chat
van quan » van ban

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: hoc thieu sang - canh manh chua bang song ((dan chan) OR (van quan)) cao~.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sang - canh manh chua bang song ((dan chan) or (van quan)) cao*.