Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung tuan » trung thanh, trung tam, tran tuan
thong cong » trong cong, tong cong, thong thong
hang cong » dang cong, hang nong, bang cong
30 trieu » 25 trieu
ban toan » bai toan, ban than, van toan
toan cau » toan cao, toan ban, toan tap

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 tuan ((thong cong) or (hang cong)) ban toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: 30 trieu tinh - thanh trung tuan ((thong cong) OR (hang cong)) ban toan cau.
• Adding a wildcard symbol may retrieve word variants: 30 trieu tinh - thanh trung tuan ((thong cong) or (hang cong)) ban toan cau*.