Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hieu lang » chieu sang, hieu quang, nhieu tang
bang cong » dang cong, bang song, hang cong
hanh dam » thanh dam, hanh lam, hanh nam
van bang » van ban, van nang, von bang
dan toan » dan than, manh toan, xuan toan
van toan » van tuan, van tan, van thanh
dam van » dao van, nam van, pham van

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((hieu lang) or (chieu sach)) - hanh dam van bang cong ((dan toan) or (van toan)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu lang) OR (chieu sach)) - hanh dam van bang cong ((dan toan) OR (van toan)) tap.
• Adding a wildcard symbol may retrieve word variants: ho ((hieu lang) or (chieu sach)) - hanh dam van bang cong ((dan toan) or (van toan)) tap*.