Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, tran tuan
nhung cong » dung cong, thong cong, hang cong
doi trieu » doi chieu, doi trinh, hoi tieu
tong quan » thong quan, tong luan, luong quan
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan tap » toan ban
dong » dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi trieu) OR (dong trieu)) tinh - thanh ((trung tuan) or (tong quan)) nhung cong tac toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi trieu) OR (dong trieu)) tinh - thanh ((trung tuan) OR (tong quan)) nhung cong tac toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi trieu) OR (dong trieu)) tinh - thanh ((trung tuan) or (tong quan)) nhung cong tac toan tap".
• Adding a wildcard symbol may retrieve word variants: ((doi trieu) OR (dong trieu)) tinh - thanh ((trung tuan) or (tong quan)) nhung cong tac toan tap*.