Perhaps you should try some spelling variations:
luat phuong » luat thuong, luan phuong, xuat phuong
hanh trinh » canh tranh, hanh chinh
kieu tinh » lieu tinh, trieu tinh, diep tinh
hoang van » hang va
thanh cau » thanh chau, thanh mau, nhanh cau
dang van » hang va
so kieu » so dieu, so lieu, ho kieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: so kieu tinh - hanh trinh luat phuong ((dang van) or (hoang van)) thanh cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so kieu tinh - hanh trinh luat phuong ((dang van) OR (hoang van)) thanh cau*.