Perhaps you should try some spelling variations:
tranh luat » trinh luat, tranh luan, trinh luan
luat cong » thuat cong, luat chung, cua cong
cong cong » cong dong, trong cong, dung cong
thi hanh » thi thanh
tac toan » tap toan, hach toan, tich toan
tam toan » tap toan, tam than, pham toan
doi thi » doi thoi, do thi, doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi thi hanh - canh tranh luat cong cong ((tac toan) OR (tam toan)) cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi thi hanh - canh tranh luat cong cong ((tac toan) OR (tam toan)) cao".
• Adding a wildcard symbol may retrieve word variants: doi thi hanh - canh tranh luat cong cong ((tac toan) OR (tam toan)) cao*.