Perhaps you should try some spelling variations:
thanh tran » thanh trang, thanh tra, thanh tuan
thanh toan » thanh hoa, thanh san, tinh toan
dong cong » duong cong, dung cong, dang cong
hoc kinh » hoc sinh, luoc kinh
cong san » cong tac
san tuan » van tuan, san luan, san quan
tuan tap » toan tap, tuan tai, tuyen tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc kinh) or (hanh chinh)) sach - ((thanh tran) or (thanh toan)) van dong cong san tuan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc kinh) OR (hanh chinh)) sach - ((thanh tran) OR (thanh toan)) van dong cong san tuan tap.
• Adding a wildcard symbol may retrieve word variants: ((hoc kinh) or (hanh chinh)) sach - ((thanh tran) or (thanh toan)) van dong cong san tuan tap*.