Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
nhung cong » dung cong, thong cong, hang cong
cong thanh » dong thanh, cong trinh, cong tan
thanh than » thanh thanh, thanh thang, thanh toan
doi chieu » doc hieu, doi chi, ho chieu
cap nhung » cam nhung, vap nhung, dap nhung
than cau » toan cau, phan cau, than cap

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 sach - ((thanh trung) or (thanh tung)) cap nhung cong thanh than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - ((thanh trung) OR (thanh tung)) cap nhung cong thanh than cau.
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - ((thanh trung) or (thanh tung)) cap nhung cong thanh than cau*.