Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
tran dung » tran dang, tran hung, trung dung
nhung cau » chung cu, nhung bai, nhu cau
ho chieu » theo chieu, hoc thieu, doi chieu
cong ban » cong bang, cong tan, cong dan
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: ho chieu sach - thanh trung ((tran dung) or (tran quang)) ((cong ban) OR (cong san)) nhung cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh trung ((tran dung) OR (tran quang)) ((cong ban) OR (cong san)) nhung cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - thanh trung ((tran dung) or (tran quang)) ((cong ban) OR (cong san)) nhung cau".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh trung ((tran dung) or (tran quang)) ((cong ban) OR (cong san)) nhung cau*.