Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
thu phuong » thi phuong, theo phuong, tai phuong
nhan dang » nhan dan, phan dang, tran dang
thu huong » thu cong
dinh toan » tinh toan, hinh toan, minh toan
dang cua » dung cua, dong cua, mang cua
toan ban » 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) OR (chieu sach)) - nhan dang cua ((thu phuong) OR (thu huong)) dinh toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu xanh) or (chieu sach)) - nhan dang cua ((thu phuong) OR (thu huong)) dinh toan ban~".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu xanh) or (chieu sach)) - nhan dang cua ((thu phuong) OR (thu huong)) dinh toan ban*.