Perhaps you should try some spelling variations:
trung van » truong van, trung tuan, trung phan
trong van » trong cac
trong dan » trong dang, trong san, trong tan
30 trieu » 25 trieu
trung va » truong va, trang va, trung ha
dan toan » van toan, dan than, manh toan
toan ban » van ban

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 - thanh ((((trung van) OR (trung va))) or (trong van)) dung trong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: 30 trieu tinh - thanh ((((trung van) OR (trung va))) OR (trong van)) dung trong dan toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "30 trieu tinh - thanh ((((trung van) OR (trung va))) or (trong van)) dung trong dan toan ban".
• Adding a wildcard symbol may retrieve word variants: 30 trieu tinh - thanh ((((trung van) OR (trung va))) or (trong van)) dung trong dan toan ban*.