Perhaps you should try some spelling variations:
minh truong » minh tuong, sinh truong, minh thuong
nhung tuong » nhung huong, nhung phuong, hung vuong
manh trung » manh tung, thanh trung, manh hung
thiet yeu » thiet ke, theo yeu
cua nhung » va nhung
manh toan » thanh toan, anh tuan, tinh toan
yeu tinh » yeu tin, lieu tinh, kieu tinh
dan toan » van toan, dan than, xuan toan

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: thiet yeu tinh - ((minh truong) OR (manh trung)) cua nhung tuong ((dan toan) OR (manh toan)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thiet yeu tinh - ((minh truong) or (manh trung)) cua nhung tuong ((dan toan) OR (manh toan)) cau~".
• Adding a wildcard symbol may retrieve word variants: thiet yeu tinh - ((minh truong) or (manh trung)) cua nhung tuong ((dan toan) OR (manh toan)) cau*.