Perhaps you should try some spelling variations:
cang thang » cong thanh, dang thanh
nhung cong » dung cong, thong cong, hang cong
thoai cac » tai cac, thong cac, tho cac
ho chinh » hoc chinh, cho chinh, hoa chinh
thang va » hang va, trang va, thong va
cong dan » cong san, cong tan, huong dan
than cao » toan cao, than cap, than sao
thai cao » tai cao, thuat cao, toan cao

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 - cang thang va nhung cong dan ((than cao) or (((thai cao) OR (thoai cac))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chinh sach - cang thang va nhung cong dan ((than cao) OR (((thai cao) OR (thoai cac)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chinh sach - cang thang va nhung cong dan ((than cao) or (((thai cao) OR (thoai cac))))".
• Adding a wildcard symbol may retrieve word variants: ho chinh sach - cang thang va nhung cong dan ((than cao) or (((thai cao) OR (thoai cac))))*.