Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
phan cong » thanh cong
hach toan » thanh toan, manh toan
chu manh » ho manh, chu han, chu van
anh tang » anh bang, anh dang, anh nang
tang cua » mang cua, hang cua, tang luan
cua phan » cua nhan, cua phap, cua han
tac toan » tap toan, tam toan, tich 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: theo ((chu manh) OR (chieu xanh)) - anh tang cua phan cong ((tac toan) OR (hach toan)) tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chu manh) or (chieu xanh)) - anh tang cua phan cong ((tac toan) OR (hach toan)) tap~".
• Adding a wildcard symbol may retrieve word variants: theo ((chu manh) or (chieu xanh)) - anh tang cua phan cong ((tac toan) OR (hach toan)) tap*.