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 dan » long doan, nong dan, long van
cong dan » cong san, cong tan, huong dan
toan cao » toan ban, toan tap

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