Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
theo phap » thi phap
phap tinh » phap sinh, phap tieng, phap tang
tang luan » dung luan
tang cua » mang cua, hang cua, thong cua
ly toan » le toan, ly tran, ly doanh
ly hoan » ly hoa, ly hoat, ly doanh

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: theo phap tinh - hanh ((tang cua) OR (tang luan)) nhung cong ((ly toan) OR (ly hoan)) tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo phap tinh - hanh ((tang cua) OR (tang luan)) nhung cong ((ly toan) or (ly hoan)) tap~".
• Adding a wildcard symbol may retrieve word variants: theo phap tinh - hanh ((tang cua) OR (tang luan)) nhung cong ((ly toan) or (ly hoan)) tap*.