Perhaps you should try some spelling variations:
thanh trung » thanh tung
xuan truong » xa truong, duong truong
cong thanh » dong thanh, cong trinh, cong tan
thanh than » thanh thanh, thanh thang, thanh toan
doi chieu » doi chi, ho chieu, mot chieu
cua thong » cua thuong, cua khong, cua tong
doc hieu » toc thieu, hoc thieu, hoc hien
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi chieu) OR (doc hieu)) sach - thanh trung ((cua thong) or (xuan truong)) cong thanh than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (doc hieu)) sach - thanh trung ((cua thong) OR (xuan truong)) cong thanh than cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) OR (doc hieu)) sach - thanh trung ((cua thong) or (xuan truong)) cong thanh than cap".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) OR (doc hieu)) sach - thanh trung ((cua thong) or (xuan truong)) cong thanh than cap*.