Perhaps you should try some spelling variations:
doanh luan » doanh nhan
luan thang » luan thanh, xuan thang, luan tang
theo phap » thi phap
phap tinh » phap sinh, phap tieng, phap tang
long doan » cong doan, dong doanh, rong doanh
cong dan » cong san, cong tan, huong dan
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo phap tinh - toan doanh luan thang ((cong dan) or (long doan)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo phap tinh - toan doanh luan thang ((cong dan) OR (long doan)) toan tap.
• Adding a wildcard symbol may retrieve word variants: theo phap tinh - toan doanh luan thang ((cong dan) or (long doan)) toan tap*.