Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
hanh bang » anh bang, hanh mang, lanh bang
va phuong » va thuong, cac phuong
cong tan » cong tac, cong san, cong thanh
toan cao » toan tap
toan ban » van ban
bang va » hang va, ban va, trang va

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chieu xanh) or (chieu sach)) - hanh bang va phuong cong tan ((toan cao) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu xanh) OR (chieu sach)) - hanh bang va phuong cong tan ((toan cao) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: doi ((chieu xanh) or (chieu sach)) - hanh bang va phuong cong tan ((toan cao) or (toan ban))*.