Perhaps you should try some spelling variations:
thanh trung » thanh tung
thong cong » trong cong, tong cong, thong thong
chu khong » he khong, thi khong, chu trong
trung va » truong va, trang va, trung ha
va thong » va thuong, va phuong, he thong
cong dan » cong san, cong tan, huong dan
toan cao » toan tap
toan ban » van ban
hoi chu » hoi chuc

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoi chu khong - thanh trung va thong cong dan ((toan cao) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoi chu khong - thanh trung va thong cong dan ((toan cao) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: hoi chu khong - thanh trung va thong cong dan ((toan cao) or (toan ban))*.