Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
chieu xanh » chieu sach, chieu sang, chieu tinh
cua phuong » cuu phuong, cuc phuong, luan phuong
hanh dung » thanh dung, anh dung, hanh dong
dung cua » dung luan, dung cho
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.

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