Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
trang luan » tang luan, tranh luan, trang tuan
phung cong » nhung cong, nhung chong, dung cong
phong cong » phong chong, thong cong, chong cong
ho trieu » mot trieu, 25 trieu, ho chieu
30 trieu » 25 trieu
van than » van thanh, van thang, van tuan
than tap » toan tap, han tap, phan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho trieu) OR (30 trieu)) tinh - hanh trang luan ((phung cong) or (phong cong)) van than tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho trieu) OR (30 trieu)) tinh - hanh trang luan ((phung cong) OR (phong cong)) van than tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho trieu) OR (30 trieu)) tinh - hanh trang luan ((phung cong) or (phong cong)) van than tap".
• Adding a wildcard symbol may retrieve word variants: ((ho trieu) OR (30 trieu)) tinh - hanh trang luan ((phung cong) or (phong cong)) van than tap*.