Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
trong quan » thong quan, thong quang, luong quan
hoc chieu » hoc thieu, ho chieu, hoc hien
tong quan » thong quan, tong luan, luong quan
dung cong » dung trong
hach toan » thanh toan
manh toan » thanh toan, anh tuan, tinh 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: hoc chieu xanh - hanh ((trong quan) OR (tong quan)) dung cong ((hach toan) OR (manh toan)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu xanh - hanh ((trong quan) OR (tong quan)) dung cong ((hach toan) or (manh toan)) cau~".
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - hanh ((trong quan) OR (tong quan)) dung cong ((hach toan) or (manh toan)) cau*.