Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
hang hang » nang hang, cang thang, hung thang
cong danh » cuong danh, cong dan, cong thanh
30 trieu » 25 trieu
va thong » va thuong, va phuong, he thong
nhan tai » hang tai, toan tai
van tai » von tai, van tuan

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

• Performing a fuzzy search may retrieve terms with similar spellings: 30 trieu tinh - ((hang hang) or (thanh san)) va thong cong danh ((nhan tai) OR (van tai))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: 30 trieu tinh - ((hang hang) OR (thanh san)) va thong cong danh ((nhan tai) OR (van tai)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "30 trieu tinh - ((hang hang) or (thanh san)) va thong cong danh ((nhan tai) OR (van tai))".
• Adding a wildcard symbol may retrieve word variants: 30 trieu tinh - ((hang hang) or (thanh san)) va thong cong danh ((nhan tai) OR (van tai))*.