Perhaps you should try some spelling variations:
thanh truong » thanh trung, thanh tung, thanh huong
thanh thuong » thanh huong, thanh chuong, thanh phuong
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
dung cong » dung trong
qua dung » quang dung, su dung, qua song
cong tap » cuong tap, cong tac, cong tan
tap toan » tap doan, tap quan, bai toan
toan ban » van ban

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 xanh) OR (chieu sach)) - ((thanh truong) or (thanh thuong)) qua dung cong tap toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (chieu sach)) - ((thanh truong) OR (thanh thuong)) qua dung cong tap toan ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) OR (chieu sach)) - ((thanh truong) or (thanh thuong)) qua dung cong tap toan ban*".