Perhaps you should try some spelling variations:
nhung duong » nhung dung, nhung huong, nhung tuong
chieu xanh » chieu sach, chieu sang, chieu tinh
trong quan » thong quan, thong quang, luong quan
duong manh » duong van
tong quan » thong quan, tong luan, luong quan
manh toan » thanh toan, anh tuan, tinh toan
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 xanh) or (chinh sach)) - hanh ((trong quan) OR (tong quan)) nhung duong manh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (chinh sach)) - hanh ((trong quan) OR (tong quan)) nhung duong manh toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) or (chinh sach)) - hanh ((trong quan) OR (tong quan)) nhung duong manh toan cao".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (chinh sach)) - hanh ((trong quan) OR (tong quan)) nhung duong manh toan cao*.