Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
trung tran » trung thanh, trung tam, hung tran
trung tuan » trung thanh, trung tam, tran tuan
dung cong » dung trong
cong gian » chong gian, con gian, cong giao
nhung cau » chung cu, nhung bai
ho chieu » theo chieu, hoc thieu, doi chieu

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) or (trung tuan)) dung cong gian ((nhung cau) OR (nhu cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh ((trung tran) OR (trung tuan)) dung cong gian ((nhung cau) OR (nhu cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - thanh ((trung tran) or (trung tuan)) dung cong gian ((nhung cau) OR (nhu cau))".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh ((trung tran) or (trung tuan)) dung cong gian ((nhung cau) OR (nhu cau))*.