Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
hieu lang » chieu sang, hieu quang, nhieu tang
cua thang » cua hang, cua thanh, cua thuong
xua thang » xuan thang, xuan thanh, xuan trang
manh toan » thanh toan, anh tuan, tinh toan
dan toan » van toan, dan than, xuan toan
ho hieu » ho chieu, hoi hieu, nho hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho hieu lang - hanh tranh ((cua thang) or (xua thang)) long ((dan toan) OR (manh toan)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - hanh tranh ((cua thang) OR (xua thang)) long ((dan toan) OR (manh toan)) ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho hieu lang - hanh tranh ((cua thang) or (xua thang)) long ((dan toan) OR (manh toan)) ban".
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - hanh tranh ((cua thang) or (xua thang)) long ((dan toan) OR (manh toan)) ban*.