Perhaps you should try some spelling variations:
hieu lang » chieu sang, hieu quang, nhieu tang
hanh hang » thanh hang, hang hang, hanh han
dung cong » dung trong
dan than » dan chan, ban than, dan toan
van than » van thanh, van thang, van tuan
ho hieu » ho chieu, hoi hieu, nho hieu
hang ca » hang va, nang cao, hang tai
ca dung » cao dung, cap dung, cu dung

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 - hanh hang ca dung cong ((dan than) or (van than)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - hanh hang ca dung cong ((dan than) OR (van than)) cao.
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - hanh hang ca dung cong ((dan than) or (van than)) cao*.