Perhaps you should try some spelling variations:
thanh thuong » thanh chuong, thanh phuong, khanh thuong
thanh huong » thanh hung, thanh cong, anh huong
hieu lang » chieu sang, hieu quang, nhieu tang
cao nhung » cho nhung, cam nhung, cao chung
cong van » cong vang, song van, cong tan
cong san » cong tac
toan cao » toan ban, toan tap
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 - ((thanh huong) or (thanh thuong)) cao nhung ((cong van) OR (cong san)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - ((thanh huong) OR (thanh thuong)) cao nhung ((cong van) OR (cong san)) toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho hieu lang - ((thanh huong) or (thanh thuong)) cao nhung ((cong van) OR (cong san)) toan cao".
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - ((thanh huong) or (thanh thuong)) cao nhung ((cong van) OR (cong san)) toan cao*.