Perhaps you should try some spelling variations:
duong cong » dung cong, luong cong, duong trong
hanh mang » nhanh mang, hanh trang, nhanh lang
ho trieu » mot trieu, 25 trieu, ho chieu
30 trieu » 25 trieu
va duong » van duong, va tuong, va huong
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan ban » van ban
mang va » mang vua, hang va, bang va

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 mang va duong cong dan toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho trieu) OR (30 trieu)) tinh - hanh mang va duong cong dan toan ban".
• Adding a wildcard symbol may retrieve word variants: ((ho trieu) OR (30 trieu)) tinh - hanh mang va duong cong dan toan ban*.