Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
luat dang » luat dan, luat danh, luat doanh
cong tan » cong tac, cong san, cong thanh
song van » hoang van, trong van, duong van
toan cau » toan cao, toan ban, toan tap
ha chau » hat chau, lai chau, hoa chat
a chau » lai chau, hat chau, mai chau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ha chau) or (a chau)) tinh - hanh trinh luat dang ((cong tan) or (song van)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ha chau) OR (a chau)) tinh - hanh trinh luat dang ((cong tan) OR (song van)) toan cau.
• Adding a wildcard symbol may retrieve word variants: ((ha chau) or (a chau)) tinh - hanh trinh luat dang ((cong tan) or (song van)) toan cau*.