Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
luat khong » luat thong, luat thuong, suat thong
khong cong » thong cong, khong cang, chong cong
thi hanh » thi thanh
tan toan » van toan, dan toan, tam toan
tap toan » tap doan, tap quan, bai 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 - hanh trinh luat khong cong ((((tan toan) OR (tan tran))) or (tap toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi thi hanh - hanh trinh luat khong cong ((((tan toan) OR (tan tran))) OR (tap toan)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi thi hanh - hanh trinh luat khong cong ((((tan toan) OR (tan tran))) or (tap toan)) cau".
• Adding a wildcard symbol may retrieve word variants: doi thi hanh - hanh trinh luat khong cong ((((tan toan) OR (tan tran))) or (tap toan)) cau*.