Perhaps you should try some spelling variations:
thanh trong » thanh trung, tranh trong, hanh trong
trong can » trong canh, trong chan, trong cac
chu tinh » chau tinh, chua tinh, cuu tinh
cong san » cong tac
toan cao » toan ban, toan tap
can ban » van ban, toan ban
ho chu » hoi chu, cho chu, ho chua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chu tinh - thanh trong can ban ((cong ty) or (cong san)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chu tinh - thanh trong can ban ((cong ty) OR (cong san)) toan cao.
• Adding a wildcard symbol may retrieve word variants: ho chu tinh - thanh trong can ban ((cong ty) or (cong san)) toan cao*.