Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
30 trieu » 25 trieu
mang vua » mang cua, hang va, bang va
cong van » cong vang, cong san, song van
van toan » van tuan, van tan, van thanh
toan ban » van ban
mang va » hang va, bang va, dang va

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