Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hanh trang » thanh trung, canh tranh, minh trang
tang mong » mang mong, hang mong, tang dong
chi sach » chinh sach, chieu sach, co sach
van tang » van thang, van trang, van nang
dan toan » van toan, dan than, manh toan
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi sach - ((hanh trang) or (hanh trinh)) van tang mong ((dan toan) or (tinh toan)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi sach - ((hanh trang) OR (hanh trinh)) van tang mong ((dan toan) OR (tinh toan)) tap.
• Adding a wildcard symbol may retrieve word variants: doi chi sach - ((hanh trang) or (hanh trinh)) van tang mong ((dan toan) or (tinh toan)) tap*.