Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trang, lanh tranh
hanh trinh » canh tranh, hanh chinh
tieu tinh » trieu tinh, tieu trinh, lieu tinh
cua thong » cua thuong, cua khong, cua tong
manh toan » thanh toan, anh tuan, tinh toan
dan toan » van toan, dan than, xuan toan

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 tinh - ((hanh tranh) or (hanh trinh)) cua thong thong ((dan toan) OR (manh toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu tinh - ((hanh tranh) OR (hanh trinh)) cua thong thong ((dan toan) OR (manh toan)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu tinh - ((hanh tranh) or (hanh trinh)) cua thong thong ((dan toan) OR (manh toan)) cau".
• Adding a wildcard symbol may retrieve word variants: theo tieu tinh - ((hanh tranh) or (hanh trinh)) cua thong thong ((dan toan) OR (manh toan)) cau*.