Perhaps you should try some spelling variations:
chieu sach » chinh sach, chieu sang, chieu xanh
hanh nhan » thanh nhan, danh nhan, anh nhan
dang cong » dung cong
nhan tao » nhan tai, nhan dan
tao dang » cao dang, tao bang, tao dong
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu sach) OR (chiet tach)) - hanh nhan tao dang cong dan toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sach) OR (chiet tach)) - hanh nhan tao dang cong dan toan cao".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) OR (chiet tach)) - hanh nhan tao dang cong dan toan cao*.