Perhaps you should try some spelling variations:
thanh truong » thanh trung, thanh thuong, thanh huong
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
thanh tung » thanh cong
dang cong » dung cong
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan ban » van ban
va dang » van dang, va nang, va lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu sach) OR (chieu sang)) - ((thanh truong) or (thanh tung)) va dang cong tac toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chieu sang)) - ((thanh truong) OR (thanh tung)) va dang cong tac toan ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) OR (chieu sang)) - ((thanh truong) or (thanh tung)) va dang cong tac toan ban*".