Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, nhieu tang
hieu lang » hieu quang, nhieu tang, hieu van
van thanh » ban thanh, van tuan
hanh dam » thanh dam, hanh lam, hanh nam
ban cong » bang cong, van cong, phan cong
dan toan » van toan, dan than, manh toan
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 sang)) - hanh dam van ban cong ((dan toan) or (van thanh)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu lang) OR (chieu sang)) - hanh dam van ban cong ((dan toan) OR (van thanh)) tap.
• Adding a wildcard symbol may retrieve word variants: ho ((hieu lang) or (chieu sang)) - hanh dam van ban cong ((dan toan) or (van thanh)) tap*.