Perhaps you should try some spelling variations:
trung thuan » trung tuan, trong thuan, trung thanh
thanh trung » thanh tung
thuan phong » tuan phong, tran phong, luan phong
phong cong » phong chong, thong cong, chong cong
doc hieu » hoc thieu, hoc hien
cong san » cong tac
than cau » phan cau, than cap, thanh chau
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doc hieu) or (toc thieu)) xanh - thanh trung thuan phong cong san ((than cau) OR (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (toc thieu)) xanh - thanh trung thuan phong cong san ((than cau) OR (toan cau))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doc hieu) or (toc thieu)) xanh - thanh trung thuan phong cong san ((than cau) OR (toan cau))*".