Perhaps you should try some spelling variations:
cang thang » cong thanh, dang thanh
hoa chinh » hoan chinh, hoa hinh, hoc chinh
ho chinh » hoc chinh, cho chinh, do chinh
thang va » hang va, trang va, thong va
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
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) or (hoa chinh)) sach - cang thang va nhung ((cong dan) OR (cong tan)) than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chinh) OR (hoa chinh)) sach - cang thang va nhung ((cong dan) OR (cong tan)) than cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chinh) or (hoa chinh)) sach - cang thang va nhung ((cong dan) OR (cong tan)) than cao".
• Adding a wildcard symbol may retrieve word variants: ((ho chinh) or (hoa chinh)) sach - cang thang va nhung ((cong dan) OR (cong tan)) than cao*.