Perhaps you should try some spelling variations:
chieu sach » chinh sach, chieu sang, chieu xanh
thanh tung » thanh cong
thong cong » trong cong, tong cong, thong thong
cua thong » cua thuong, cua khong, cua tong
tan thanh » tran thanh, tang thanh, toan thanh
tung cua » trung cua, tuong cua, dung cua
tan than » tan tran, ban than, tam than

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) or (chiet tach)) - thanh tung cua thong cong ((tan than) OR (tan thanh)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chiet tach)) - thanh tung cua thong cong ((tan than) OR (tan thanh)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) or (chiet tach)) - thanh tung cua thong cong ((tan than) OR (tan thanh)) cau".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (chiet tach)) - thanh tung cua thong cong ((tan than) OR (tan thanh)) cau*.