Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
thanh trung » thanh tung
cua thuong » cua truong, cua phuong, ca thuong
hieu manh » chieu xanh, hieu nganh, hien hanh
trung cua » truong cua, trung tuan, trung cap
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap

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 manh) OR (dieu hanh)) - thanh trung cua thuong cong dan than cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((hieu manh) OR (dieu hanh)) - thanh trung cua thuong cong dan than cau".
• Adding a wildcard symbol may retrieve word variants: doc ((hieu manh) OR (dieu hanh)) - thanh trung cua thuong cong dan than cau*.