Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
hoang manh » hoang minh, hoang anh, hoang xanh
hanh manh » hanh mang, lanh manh, thanh minh
dung cong » dung trong
cua dung » cua dang, cua dong, qua dung
cong van » cong vang, cong san, song van
van toan » van tuan, van tan, van thanh
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu xanh) or (chieu sach)) - ((hanh manh) or (hoang manh)) cua dung cong van toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (chieu sach)) - ((hanh manh) OR (hoang manh)) cua dung cong van toan tap.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) or (chieu sach)) - ((hanh manh) or (hoang manh)) cua dung cong van toan tap*.