Perhaps you should try some spelling variations:
dang thanh » dong thanh, dang hanh, hoang thanh
nhung cong » thong cong, hang cong, nhung don
dung cong » dung trong
ho chinh » hoc chinh, cho chinh, hoa chinh
thanh va » thanh van, hanh va, thanh ha
dan than » dan chan, ban than, van than
than cao » toan cao, thai cao, than cap

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 - dang thanh va ((nhung cong) OR (dung cong)) dan than cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chinh sach - dang thanh va ((nhung cong) OR (dung cong)) dan than cao".
• Adding a wildcard symbol may retrieve word variants: ho chinh sach - dang thanh va ((nhung cong) OR (dung cong)) dan than cao*.