Perhaps you should try some spelling variations:
doanh luan » doanh nhan
nhung cong » dung cong, thong cong, hang cong
hien lang » hieu lang, hien trang, khien bang
tien lang » tien long, ten lang, tien luong
van thanh » ban thanh, van tuan
cong van » cong vang, cong san, song van
thanh ca » thanh cha, thanh cac, thanh ha

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 lang) OR (tien lang)) - canh ((doanh cua) or (doanh luan)) nhung cong van thanh ca~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien lang) OR (tien lang)) - canh ((doanh cua) OR (doanh luan)) nhung cong van thanh ca.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien lang) OR (tien lang)) - canh ((doanh cua) or (doanh luan)) nhung cong van thanh ca".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien lang) OR (tien lang)) - canh ((doanh cua) or (doanh luan)) nhung cong van thanh ca*.