Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
trung thuat » thuong thuat, trung tuan, trung thuc
trong thuat » trong hoat, trong thu, trong phat
chiet tach » chieu sach
manh toan » thanh toan, anh tuan, tinh toan
ho chiet » ho chieu, ho thiet, hoc thiet
dan than » dan chan, ban than, van than

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chiet tach - hanh ((trung thuat) OR (trong thuat)) nhung phuong ((dan than) or (manh toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chiet tach - hanh ((trung thuat) OR (trong thuat)) nhung phuong ((dan than) OR (manh toan)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chiet tach - hanh ((trung thuat) OR (trong thuat)) nhung phuong ((dan than) or (manh toan)) cau".
• Adding a wildcard symbol may retrieve word variants: ho chiet tach - hanh ((trung thuat) OR (trong thuat)) nhung phuong ((dan than) or (manh toan)) cau*.