Perhaps you should try some spelling variations:
nhanh mang » nhanh lang, hanh mang, nhanh quang
thong cong » trong cong, tong cong, thong thong
vua thong » va thong, suat thong, xuat thong
mang vua » mang cua, mang va, hang va
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van 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) OR (25 trieu)) tinh - nhanh mang vua thong cong tan toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((30 trieu) OR (25 trieu)) tinh - nhanh mang vua thong cong tan toan ban".
• Adding a wildcard symbol may retrieve word variants: ((30 trieu) OR (25 trieu)) tinh - nhanh mang vua thong cong tan toan ban*.