Perhaps you should try some spelling variations:
tong cong » trong cong, cong cong, dung cong
danh toan » manh toan, anh toan, dang toan
theo chu » theo chieu, cho chu, chao chu
chu xanh » chu manh, chieu xanh, chua xang
trinh he » trinh han, trinh hoa, trinh thi
dan toan » van toan, dan than, manh toan
tinh he » hinh he, tinh ha, tich he

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chu xanh - canh ((tinh he) OR (trinh he)) tong cong ((danh toan) or (dan toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu xanh - canh ((tinh he) OR (trinh he)) tong cong ((danh toan) OR (dan toan)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chu xanh - canh ((tinh he) OR (trinh he)) tong cong ((danh toan) or (dan toan)) cau".
• Adding a wildcard symbol may retrieve word variants: theo chu xanh - canh ((tinh he) OR (trinh he)) tong cong ((danh toan) or (dan toan)) cau*.