Perhaps you should try some spelling variations:
thanh tran » thanh trang, thanh tra, thanh tuan
thanh toan » thanh hoa, thanh san, tinh toan
nhung cong » dung cong, thong cong, hang cong
hien hanh » dieu hanh
van nhung » van nhuong, va nhung, van hung
hien anh » thien anh, dien anh, tien anh
cong van » cong vang, cong san, song van
van tuan » van quan, van ban, anh tuan
tuan cao » toan cao, juan cao, quang cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hien anh) or (hien hanh)) - ((thanh tran) OR (thanh toan)) van nhung cong van tuan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien anh) OR (hien hanh)) - ((thanh tran) OR (thanh toan)) van nhung cong van tuan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien anh) or (hien hanh)) - ((thanh tran) OR (thanh toan)) van nhung cong van tuan cao".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien anh) or (hien hanh)) - ((thanh tran) OR (thanh toan)) van nhung cong van tuan cao*.