Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
chieu xanh » chieu sang, chieu tinh, hieu manh
hoan thanh » hoang thanh, ban thanh, van thanh
hanh hang » thanh hang, hang hang, hanh han
bang cong » dang cong, bang song, hang cong
cong hoan » cong hoa, dong hoa, cong san
hang cua » mang cua, hang ca, huong cua
cua bang » chua bang, cua ban, cua dang
thanh ca » thanh cha, thanh cac, thanh ha

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 sach) or (chieu xanh)) - hanh hang cua bang cong hoan thanh ca~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (chieu xanh)) - hanh hang cua bang cong hoan thanh ca.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) or (chieu xanh)) - hanh hang cua bang cong hoan thanh ca*.