Perhaps you should try some spelling variations:
thanh tung » thanh cong
dong cuong » dong duong, dong huong, dang cuong
cuong tap » luong tap, cong tac, luong tai
ho chinh » hoc chinh, cho chinh, hoa chinh
cua dong » chua dong, cua cong, cua dang
tap toan » tap doan, tap quan, bai toan
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chinh sach - ((thanh trung) OR (thanh tung)) cua dong cuong tap toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chinh sach - ((thanh trung) OR (thanh tung)) cua dong cuong tap toan cao".
• Adding a wildcard symbol may retrieve word variants: ho chinh sach - ((thanh trung) OR (thanh tung)) cua dong cuong tap toan cao*.