Perhaps you should try some spelling variations:
hanh tang » hanh trang, hanh mang, hanh tung
hang cong » dang cong, hang nong, bang cong
30 trieu » 25 trieu
anh tang » anh bang, anh dang, anh nang
cua hang » cua dang, cua nhung, cua cong
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh 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: ((theo tieu) or (30 trieu)) tinh - ((hanh tang) OR (anh tang)) cua hang cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo tieu) OR (30 trieu)) tinh - ((hanh tang) OR (anh tang)) cua hang cong dan toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo tieu) or (30 trieu)) tinh - ((hanh tang) OR (anh tang)) cua hang cong dan toan cau".
• Adding a wildcard symbol may retrieve word variants: ((theo tieu) or (30 trieu)) tinh - ((hanh tang) OR (anh tang)) cua hang cong dan toan cau*.