Perhaps you should try some spelling variations:
chiet tach » chieu sach
nhieu tang » chieu sang, hieu lang, nhiet nang
thanh tung » thanh cong
ban cong » bang cong, van cong, phan cong
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than ban » thanh ban, toan ban, than man
tung va » trung va, tuong va, dung va
va ban » van ban, va bai, va bao

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((((chinh sach) or (nhieu tang))) or (chiet tach)) - thanh tung va ban cong dan than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((((chinh sach) OR (nhieu tang))) OR (chiet tach)) - thanh tung va ban cong dan than ban.
• Adding a wildcard symbol may retrieve word variants: ho ((((chinh sach) or (nhieu tang))) or (chiet tach)) - thanh tung va ban cong dan than ban*.