Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh quan » tinh quang, trinh luat, trinh han
bien tinh » bi tinh, yen tinh, diep tinh
quan ngan » quang ngai, quan luan, quan doan
hang cong » dang cong, hang nong, bang cong
tran chau » tranh chap, tran huu
toan cao » toan ban, toan tap
ho bien » pho bien, hoa bien, so bien

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho bien tinh - hanh trinh quan ngan hang cong ((tran chau) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho bien tinh - hanh trinh quan ngan hang cong ((tran chau) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: ho bien tinh - hanh trinh quan ngan hang cong ((tran chau) or (toan cao))*.