Perhaps you should try some spelling variations:
chieu sach » chinh sach, chieu sang, chieu xanh
nhan dang » nhan dan, phan dang, tran dang
dang cong » dung cong
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap
hieu ca » hieu cac, hieu cua, hieu va
dang va » dang van, dang vat, hang va
va dang » van dang, va nang, va lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((((hieu ca) or (chieu sach))) or (chiet tach)) - nhan dang va dang cong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((((hieu ca) OR (chieu sach))) OR (chiet tach)) - nhan dang va dang cong dan toan cao.
• Adding a wildcard symbol may retrieve word variants: ho ((((hieu ca) or (chieu sach))) or (chiet tach)) - nhan dang va dang cong dan toan cao*.