Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hieu lang » chieu sang, hieu quang, nhieu tang
van thong » van thuong, van phong, va thong
hoang van » hang va
van thanh » ban thanh, van tuan
thanh ban » thanh san, thanh van, thanh bac
nho hieu » nha hieu, nho sieu, nhu hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: nho hieu lang - hanh trinh ((van thong) or (van dong)) hoang van thanh ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nho hieu lang - hanh trinh ((van thong) OR (van dong)) hoang van thanh ban*.