Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
thong cong » trong cong, tong cong, thong thong
30 trieu » 25 trieu
trang va » tran van, hang va
va thong » va thuong, va phuong, he thong
hai tap » hai thap, bai tap, hai tan
han tap » han tai, toan tap, nhan tai

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 - hanh trang va thong cong ((hai tap) or (han tap)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: 30 trieu tinh - hanh trang va thong cong ((hai tap) OR (han tap)) cao.
• Adding a wildcard symbol may retrieve word variants: 30 trieu tinh - hanh trang va thong cong ((hai tap) or (han tap)) cao*.