Perhaps you should try some spelling variations:
hoa chinh » hoan chinh, hoc chinh, hoa thinh
truong va » truong cao, truong dao, luong va
dung cong » dung trong
hoa hinh » hoa sinh, hoa binh, hoan chinh
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: ((hoa chinh) or (hoa hinh)) sach - thanh ((truong va) OR (truong dai)) dung cong dan than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoa chinh) OR (hoa hinh)) sach - thanh ((truong va) OR (truong dai)) dung cong dan than ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoa chinh) or (hoa hinh)) sach - thanh ((truong va) OR (truong dai)) dung cong dan than ban".
• Adding a wildcard symbol may retrieve word variants: ((hoa chinh) or (hoa hinh)) sach - thanh ((truong va) OR (truong dai)) dung cong dan than ban*.