Perhaps you should try some spelling variations:
trinh phuong » trinh duong, trinh dung, trinh cong
thanh chuong » thanh huong, thanh cong, nhanh chong
thanh trung » thanh tung
thieu xanh » hieu manh, thien anh, thien danh
chieu xanh » chieu sach, chieu sang, chieu tinh
cong dan » cong san, cong tan, huong dan
ca cau » cua cau, cac cau, can cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thieu xanh) OR (chieu xanh)) - thanh trung ((trinh phuong) or (thanh chuong)) cong dan ca cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (chieu xanh)) - thanh trung ((trinh phuong) OR (thanh chuong)) cong dan ca cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) OR (chieu xanh)) - thanh trung ((trinh phuong) or (thanh chuong)) cong dan ca cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) OR (chieu xanh)) - thanh trung ((trinh phuong) or (thanh chuong)) cong dan ca cau*.