Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
luat nhung » luat chung, luat thuong, thuat nhung
bien tinh » bi tinh, yen tinh, diep tinh
cong dan » cong tan, huong dan, cong dong
cong tac » cong ty
toan cau » toan cao, toan ban, toan tap
so bien » mot bien

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

• Performing a fuzzy search may retrieve terms with similar spellings: so bien tinh - hanh trinh luat nhung ((cong dan) or (((cong san) or (cong tac)))) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so bien tinh - hanh trinh luat nhung ((cong dan) OR (((cong san) OR (cong tac)))) toan cau.
• Adding a wildcard symbol may retrieve word variants: so bien tinh - hanh trinh luat nhung ((cong dan) or (((cong san) or (cong tac)))) toan cau*.