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