Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hieu lang » chieu sang, hieu quang, nhieu tang
hanh mang » nhanh mang, hanh trang, nhanh lang
dung cong » dung trong
hanh han » hanh nhan, hanh phan, hanh san
cua dung » cua dang, cua dong, qua dung
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan ban » van ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu xanh) or (hieu lang)) - ((hanh mang) or (hanh han)) cua dung cong tan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (hieu lang)) - ((hanh mang) OR (hanh han)) cua dung cong tan toan ban.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) or (hieu lang)) - ((hanh mang) or (hanh han)) cua dung cong tan toan ban*.