Perhaps you should try some spelling variations:
cong luong » cong thuong, nang luong, cong dong
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
30 trieu » 25 trieu
tinh cua » trinh cua, sinh cua, tinh chat
dan toan » van toan, manh toan, xuan toan
dan than » dan chan, ban than, van than
van tuan » van quan, van ban, anh tuan

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 - hanh tinh cua cong luong ((((dan toan) OR (dan than))) or (van tuan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: 30 trieu tinh - hanh tinh cua cong luong ((((dan toan) OR (dan than))) OR (van tuan)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "30 trieu tinh - hanh tinh cua cong luong ((((dan toan) OR (dan than))) or (van tuan)) cau".
• Adding a wildcard symbol may retrieve word variants: 30 trieu tinh - hanh tinh cua cong luong ((((dan toan) OR (dan than))) or (van tuan)) cau*.