Perhaps you should try some spelling variations:
nhung xuong » nhung huong, nhung tuong, nhung phuong
manh toan » thanh toan, anh tuan, tinh toan
theo chu » theo chieu, cho chu, chao chu
chu tinh » chau tinh, chua tinh, cuu tinh
tang cua » mang cua, hang cua, tang luan
dan toan » van toan, dan than, xuan toan
hang ca » hang va, nang cao, hang tai

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: theo chu tinh - hanh ((hang ca) OR (tang cua)) nhung xuong ((dan toan) OR (manh toan)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chu tinh - hanh ((hang ca) or (tang cua)) nhung xuong ((dan toan) OR (manh toan)) cau~".
• Adding a wildcard symbol may retrieve word variants: theo chu tinh - hanh ((hang ca) or (tang cua)) nhung xuong ((dan toan) OR (manh toan)) cau*.