Perhaps you should try some spelling variations:
thanh trung » thanh tung
chiet tach » chieu sach
hieu lang » chieu sang, hieu quang, nhieu tang
trung va » truong va, trang va, trung ha
bai cong » tai cong, bi cong, ban 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

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 (hieu lang))) or (chiet tach)) - thanh trung va bai cong dan than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((((chinh sach) OR (hieu lang))) OR (chiet tach)) - thanh trung va bai cong dan than ban.
• Adding a wildcard symbol may retrieve word variants: ho ((((chinh sach) or (hieu lang))) or (chiet tach)) - thanh trung va bai cong dan than ban*.