Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
thanh tung » thanh cong
doi chieu » doc hieu, doi chi, ho chieu
tuan dung » tuan duong, tran dung, tan dung
dung cong » dung trong
vang juan » van tuan, tang luan, hang luan
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: doi chieu xanh - ((thanh trung) OR (thanh tung)) tuan dung cong ((vang juan) OR (van quan)) cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - ((thanh trung) or (thanh tung)) tuan dung cong ((vang juan) OR (van quan)) cao~".
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - ((thanh trung) or (thanh tung)) tuan dung cong ((vang juan) OR (van quan)) cao*.