Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh quan » tinh quang, trinh luat, trinh han
cong lang » cong vang, cong luong, cong quang
quan dan » quan doan, quan den, quan van
cong van » cong vang, cong san, song van
toan ban » van ban
ha chau » hat chau, a chau, lai chau
3 chau » a chau, o 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 (3 chau)) tinh - hanh trinh quan dan ((cong van) or (cong lang)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ha chau) OR (3 chau)) tinh - hanh trinh quan dan ((cong van) OR (cong lang)) toan ban.
• Adding a wildcard symbol may retrieve word variants: ((ha chau) or (3 chau)) tinh - hanh trinh quan dan ((cong van) or (cong lang)) toan ban*.