Perhaps you should try some spelling variations:
thanh manh » thanh anh, thanh minh, thanh lanh
dang cong » dung cong
hang nong » thang long, han tong
theo chu » theo chieu, cho chu, chao chu
chu sach » cau sach, thu sach, chieu sach
manh cua » doanh cua, ban cua
dan toan » van toan, dan than, manh 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: theo chu sach - thanh manh cua ((dang cong) OR (hang nong)) ((dan toan) OR (tinh toan)) cao~.
• Adding a wildcard symbol may retrieve word variants: theo chu sach - thanh manh cua ((dang cong) or (hang nong)) ((dan toan) or (tinh toan)) cao*.