Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
tong cong » trong cong, cong cong, dung cong
hanh ban » thanh ban, hanh san, hanh han
hang ban » hang luan, hang va, hang tai
cua tong » cua cong, cua dong, cua nong
cong dan » cong san, cong tan, huong dan
dan van » dang van, doan van, dao van
chuc » thuc, chu, chua

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 sang) or (chuc nang)) - ((hanh ban) or (hang ban)) cua tong cong dan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sang) OR (chuc nang)) - ((hanh ban) OR (hang ban)) cua tong cong dan van ban.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sang) or (chuc nang)) - ((hanh ban) or (hang ban)) cua tong cong dan van ban*.