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
doi chieu » doc hieu, doi chi, ho chieu
hoc nhung » hoa nhung, hon nhung, nuoc nhung
tung hoc » trung hoc, tuong hoc, dung hoc
cong dan » cong san, cong tan, huong dan
than cao » toan cao, thai cao, than cap
toan tap » toan ban

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