Perhaps you should try some spelling variations:
thanh trung » thanh tung
thieu xanh » hieu manh, thien anh, thien danh
chieu xanh » chieu sach, chieu sang, chieu tinh
chinh chau » chinh cho, chinh phu, minh chau
trung cua » truong cua, trung tuan, trung cap
nong cong » cong cong, tong cong, nang cong
chinh cau » chinh ca, chinh can, chinh tai
cua nong » cua cong, cuu nong, cua dong
cong san » cong tac

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 cua nong cong san ((chinh cau) or (chinh chau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (chieu xanh)) - thanh trung cua nong cong san ((chinh cau) OR (chinh chau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) OR (chieu xanh)) - thanh trung cua nong cong san ((chinh cau) or (chinh chau))".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) OR (chieu xanh)) - thanh trung cua nong cong san ((chinh cau) or (chinh chau))*.