Perhaps you should try some spelling variations:
thanh trung » thanh tung
chuc danh » chuc nganh, thuc hanh, chuc nang
chua xang » chua nang, chuc nang, chu bang
trung cua » truong cua, trung tuan, trung cap
cong cong » cong dong, trong cong, dung cong
dan toan » dan than, manh toan, xuan toan
van toan » van tuan, van tan, van thanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: chao ((chuc danh) or (chua xang)) - thanh trung cua cong cong ((dan toan) OR (van toan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: chao ((chuc danh) OR (chua xang)) - thanh trung cua cong cong ((dan toan) OR (van toan)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "chao ((chuc danh) or (chua xang)) - thanh trung cua cong cong ((dan toan) OR (van toan)) cao".
• Adding a wildcard symbol may retrieve word variants: chao ((chuc danh) or (chua xang)) - thanh trung cua cong cong ((dan toan) OR (van toan)) cao*.