Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
cua khong » hua khong, cua phuong, cua thuong
thanh cau » thanh chau, nhanh cau, thanh ca
thanh mau » hanh mau, thanh san, thanh hai
he khong » he thong
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: theo chieu sach - thanh trung ((cua khong) or (he khong)) cong san ((thanh cau) OR (thanh mau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - thanh trung ((cua khong) OR (he khong)) cong san ((thanh cau) OR (thanh mau))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - thanh trung ((cua khong) or (he khong)) cong san ((thanh cau) OR (thanh mau))*".