Perhaps you should try some spelling variations:
thuong phuong » truong phuong, thong phuong, thong thuong
hieu xanh » chieu xanh, hieu manh, hieu nganh
tuong cua » truong cua, huong cua, luong cua
thong cua » thong quan, thong tu, huong cua
doc hieu » toc thieu, hoc thieu, hoc hien
dan toan » dan than, manh toan, xuan toan
van toan » van tuan, van tan, van thanh

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: doc hieu xanh - thanh ((tuong cua) OR (thong cua)) thuong phuong ((dan toan) OR (van toan)) cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu xanh - thanh ((tuong cua) or (thong cua)) thuong phuong ((dan toan) OR (van toan)) cao~".
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - thanh ((tuong cua) or (thong cua)) thuong phuong ((dan toan) OR (van toan)) cao*.