Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
thanh tung » thanh cong
dung cuong » dung cong, dung luong, dang cuong
tieu xanh » tieu danh, dieu hanh, tien anh
tung tuan » trung tuan, hung tuan, quang tuan
tuan dung » tuan duong, tran dung, tan dung
tap toan » tap doan, bai toan
tap quan » tac quan, hai quan

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((tieu xanh) OR (chieu xanh)) - thanh tung tuan dung cuong ((tap toan) or (tap quan)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((tieu xanh) OR (chieu xanh)) - thanh tung tuan dung cuong ((tap toan) OR (tap quan)) ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((tieu xanh) OR (chieu xanh)) - thanh tung tuan dung cuong ((tap toan) or (tap quan)) ban".
• Adding a wildcard symbol may retrieve word variants: theo ((tieu xanh) OR (chieu xanh)) - thanh tung tuan dung cuong ((tap toan) or (tap quan)) ban*.