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
van thang » van thanh, van khang, van hang
hang cua » mang cua, hang ca, huong cua
cua dung » cua dang, cua dong, qua dung
dan than » dan chan, ban than, van than
ho hieu » ho chieu, hoi hieu, nho hieu

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