Perhaps you should try some spelling variations:
hieu lang » chieu sang, hieu quang, nhieu tang
hanh manh » hanh mang, lanh manh, hoang manh
chua xang » chua nang, chuc nang, chua dong
manh toan » thanh toan, anh tuan, tinh toan
chu bang » thu bang, chuc nang, chu quang
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.

• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - hanh manh ((chua xang) OR (chu bang)) cong ((dan toan) OR (manh toan)) ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho hieu lang - hanh manh ((chua xang) OR (chu bang)) cong ((dan toan) or (manh toan)) ban~".
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - hanh manh ((chua xang) OR (chu bang)) cong ((dan toan) or (manh toan)) ban*.