Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
hanh trang » thanh trung, canh tranh, hanh trinh
trang cua » tranh cua, tang cua, trung cua
hang cong » dang cong, hang nong, bang cong
ho trieu » mot trieu, 30 trieu, ho chieu
25 trieu » 30 trieu
tac toan » tap toan, tam toan, hach toan
toan tap » toan ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho trieu) OR (25 trieu)) tinh - hanh trang cua ((hang cong) or (thong cong)) tac toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho trieu) OR (25 trieu)) tinh - hanh trang cua ((hang cong) OR (thong cong)) tac toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho trieu) OR (25 trieu)) tinh - hanh trang cua ((hang cong) or (thong cong)) tac toan tap".
• Adding a wildcard symbol may retrieve word variants: ((ho trieu) OR (25 trieu)) tinh - hanh trang cua ((hang cong) or (thong cong)) tac toan tap*.