Perhaps you should try some spelling variations:
thanh tuong » thanh thuong, thanh tung, thanh huong
chieu lang » chieu sang, hieu lang, chi lang
thanh hung » thanh huong, thanh tung, thanh trung
nhung cong » dung cong, thong cong, hang cong
ho chieu » theo chieu, hoc thieu, doi chieu
cong san » cong tac
san van » tan van, luan van, tran 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 chieu lang - ((thanh tuong) or (thanh hung)) va nhung cong san van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu lang - ((thanh tuong) OR (thanh hung)) va nhung cong san van ban.
• Adding a wildcard symbol may retrieve word variants: ho chieu lang - ((thanh tuong) or (thanh hung)) va nhung cong san van ban*.