Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
hien nhanh » hien hanh, tien thanh, dien thanh
thanh toan » thanh hoa, thanh san, tinh toan
van cuong » van chuong, van duong, van cong
toan van » tran van, toan ban, tan van
khan cap » khan ap, than cap, khoan cam

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien nhanh) OR (thien thanh)) - thanh toan van cuong ((cong dong) OR (huong dan)) khan cap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien nhanh) OR (thien thanh)) - thanh toan van cuong ((cong dong) or (huong dan)) khan cap~".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien nhanh) OR (thien thanh)) - thanh toan van cuong ((cong dong) or (huong dan)) khan cap*.