Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
cong thanh » dong thanh, cong trinh, cong tan
hoc nhung » hoa nhung, hon nhung, nuoc nhung
ho chieu » theo chieu, hoc thieu, doi chieu
cong dan » cong san, cong tan, huong dan
than cao » toan cao, thai cao, 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: ho chieu sach - ((thanh trung) or (thanh tung)) hoc nhung ((cong dan) or (cong thanh)) than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - ((thanh trung) OR (thanh tung)) hoc nhung ((cong dan) OR (cong thanh)) than cao.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - ((thanh trung) or (thanh tung)) hoc nhung ((cong dan) or (cong thanh)) than cao*.