Perhaps you should try some spelling variations:
thanh trung » thanh tung
cua thuong » cua truong, cua phuong, ca thuong
doi chieu » doc hieu, doi chi, mot chieu
cua thong » cua khong, cua tong, suat thong
gian chau » gian cham, gian cua, gian cac
ho chieu » theo chieu, hoc thieu, mot chieu
cong dan » cong san, cong tan, huong dan

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

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