Perhaps you should try some spelling variations:
hieu lang » chieu sang, hieu quang, nhieu tang
hanh mang » nhanh mang, hanh trang, nhanh lang
doi hieu » doi chieu, doc hieu, doi hien
cua dong » chua dong, cua cong, cua nong
cua dang » cua cong, cua ban
cong van » cong vang, cong san, song van
van than » van thanh, van thang, van tuan
than ban » thanh ban, toan ban, than man

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi hieu lang - hanh mang ((cua dong) or (cua dang)) cong van than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi hieu lang - hanh mang ((cua dong) OR (cua dang)) cong van than ban.
• Adding a wildcard symbol may retrieve word variants: doi hieu lang - hanh mang ((cua dong) or (cua dang)) cong van than ban*.