Perhaps you should try some spelling variations:
thanh toan » thanh hoa, thanh san, tinh toan
tuan thong » toan thong, tran thong, tuan phong
thong cong » trong cong, tong cong, thong thong
khia canh » kho canh, thi canh
toan tuan » tran tuan, toan quan, doan tuan
khi xanh » thi hanh, thi anh, thi oanh
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: doi ((khi xanh) or (khia canh)) - thanh toan tuan thong cong ((tap toan) or (tap quan)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((khi xanh) OR (khia canh)) - thanh toan tuan thong cong ((tap toan) OR (tap quan)) tap.
• Adding a wildcard symbol may retrieve word variants: doi ((khi xanh) or (khia canh)) - thanh toan tuan thong cong ((tap toan) or (tap quan)) tap*.