Perhaps you should try some spelling variations:
hang manh » hoang manh, hung manh, dang manh
dung cong » dung trong
van thanh » ban thanh, van tuan
ho chinh » hoc chinh, cho chinh, hoa chinh
manh cua » doanh cua, ban cua
cua dung » cua dang, cua dong, qua dung
dan than » dan chan, ban than, van than

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 - hang manh cua dung cong ((dan than) or (van thanh)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chinh sach - hang manh cua dung cong ((dan than) OR (van thanh)) cao.
• Adding a wildcard symbol may retrieve word variants: ho chinh sach - hang manh cua dung cong ((dan than) or (van thanh)) cao*.