Perhaps you should try some spelling variations:
quan trong » gian trong
hanh nang » anh nang, ganh nang, hanh mang
nang quan » ban quan, nang suat
manh toan » thanh toan, anh tuan, tinh toan
chu xanh » chu manh, chieu xanh, chua xang
dan toan » van toan, dan than, xuan toan
cho chu » cho thue

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "cho chu xanh - hanh nang quan trong cong ((dan toan) OR (manh toan)) cau~".
• Adding a wildcard symbol may retrieve word variants: cho chu xanh - hanh nang quan trong cong ((dan toan) OR (manh toan)) cau*.