Perhaps you should try some spelling variations:
trong chuan » thong chuan, trong chan, trong thuan
hinh trong » chinh trong, dinh trong, sinh trong
chuan bang » chua bang, chuan trang, can bang
cong dan » cong san, cong tan, cong dong
toan ban » van ban
dong vi » dong voi, dung vi, dong bi
dong va » dung va, dong ha, luong va

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((dong vi) OR (dong va)) sinh - hinh trong chuan bang ((cong dan) or (huong dan)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((dong vi) OR (dong va)) sinh - hinh trong chuan bang ((cong dan) OR (huong dan)) toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((dong vi) OR (dong va)) sinh - hinh trong chuan bang ((cong dan) or (huong dan)) toan ban".
• Adding a wildcard symbol may retrieve word variants: ((dong vi) OR (dong va)) sinh - hinh trong chuan bang ((cong dan) or (huong dan)) toan ban*.